Annual/Termination Reports:

[04/24/2020] [03/29/2021] [08/23/2022] [03/26/2023] [09/05/2024]

Report Information

Participants

Tom Allen (Mississippi State University),  Gary Bergstrom (Cornell University), Kaitlyn Bissonnette (University of Missouri), Carl Bradley (University of Kentucky), Marty Draper (Kansas State University), Travis Faske (University of Arkansas), Sam Fieweger (Dept. of Ag. Wisconsin), Loren Giesler (University of Nebraska), Rachel Guyer (University of Tennessee),Yuba Kandel (Iowa State University), Heather Kelly (University of Tennessee), Nathan Kleczewski (University of Illinois), Alyssa Koehler (University of Delaware), Joe LaForest (University of Georgia), Chris Little (Kansas State University), Dean Malvick (University of Minnesota), Sam Markell (North Dakota State University), Febina Mathew (South Dakota State University), Dan McDonald (Phenotyping Screening Corp.), Kelsey Mehl (University of Kentucky), Daren Mueller (Iowa State University), Danilo Neves (University of Kentucky), Boyd Padgett (LSU AgCenter), Anneta Phibbs (Dept. Ag. Wisconsin), Trey Price (LSU AgCenter), Feng Qu (The Ohio State University), John Rupe (University of Arkansas), Alejandro Rojas (University of Arkansas), Samantha Segalin (University of Arkansas), Ed Sikora (Auburn University), Damon Smith (University of Wisconsin- Madison), Terry Spurlock (University of Arkansas), Darcy Telenko (Purdue University), Albert Tenuta (Ontario Ministry of Agriculture, Food, and Rural Affairs), John Walsh (University of Kentucky), Webster (University of Wisconsin-Madison), Tessie Wilkerson (Mississippi State University), and Cristina Zambrana (University of Wisconsin-Madison).

Brief Summary of Minutes

(Please see attached file below for the annual report.) 

Minutes of the NCERA 137 – Soybean Diseases Technical Committee Meeting

March 3, 2020 

Administrative Advisor:  Dr. Marty Draper, Kansas State University 

Chair:  Dr. Carl Bradley, University of Kentucky 

Secretary:  Dr. Darcy Telenko, Purdue University 

Immediate Past Chair:  Dr. Travis Faske, University of Arkansa

Members and guests in attendance in person and on Zoom (38 total), see Participants Section. 

The meeting of the NCERA 137 Soybean Disease Committee was held in Pensacola Beach, Florida at the Hilton Hotel on March 3, 2020. The meeting began at 8:30 AM with Dr. Carl Bradley welcoming attendees, followed by brief introductions of everyone in attendance.

Dr. Marty Draper provided an administrative update, which included an explanation of multi-state projects and a USDA-NIFA budget update, 1998 Farm Bill – 25% of funds expended on multi-state activities. Dr. Draper mentioned that the NCERA 137’s renewal/review was last year, and that the renewal was well-received. Dr. Draper encouraged the group to seek research opportunities that could be conducted through the NCERA 137 committee. Station directors in region are very supportive of what the group is doing. National committees organized by a region, join from any region or foreign countries, etc. where there is a collaborative interest.

NC- Research – hatch dollars; ERA – Extension and Research Activities; CC – coordinated committees (information exchange); DC – development committees (planning for NC or ERA); Rapid Response – “500”, AC – Administrative committees – department heads serve on and review projects; NRSP – National research support project – the North central region has more projects than any other region. Crop based committees are few, as with crop disease committees, a majority animal science based. Intent on committees is to build collaboration, leverage facilities, etc, project members for grant and P&T review. 

Committee appointment is by your AES director, more than one person can be on committee from a university. Administrative advisor – authorize meeting after annual report submitted, attend and direct committee to funding opportunities, editors to projects. A new committee only needs three Experiment stations for support. There is an Excellence in multistate research award - $15,000 - last year’s winner came from NC less likely for another. $5000 for two people to APO meeting to receive award. Report from 5-year performance period. 2-years from renewal to get the award together of the 6-year renewal. 4-page format of the award. Added value and synergistic activity, external funding leverage. Need to emphasis research, as Extension is well covered. 

NIFA update: One person left as national program leads. Ann Litchens-Park (molecular programs), paneling programs, but no one to push money out. Still clearing up awards from last year. Two documents from USDA on strategic approach to align public and private research efforts. Data collection and recording and updating the system (REEport being replaced), will mesh with annual report with stations and Extension – all built on one platform. USDA Science Blueprint handout. Dramatic change from past operations.

Explanatory Notes – tells what NIFA intends to fund.

National Science Liaisons – in DC only four left, Mathieu Ngouajio – crop production, organic ag, primary author of systems information – talk to Mathieu may provide good advice.

Budget – USDA-NIFA: landgrant.org (for more information) total increase to NIFA. Numerous decreases for many programs. AFRI increased. Budget control act of 2011 (sequestration) only a small amount of space to increase budget. CARET/AHS in DC currently speaking to congressional delegations. Seven priorities capacity funding and AFRI.

Representatives of each state in attendance provided brief state reports. State reports were provided by Alabama, Arkansas, Delaware, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Minnesota, Mississippi, Missouri, Nebraska, New York, North Dakota, Ohio, South Dakota, Tennessee, and Wisconsin.  In addition, a report for Ontario, Canada was provided by Albert Tenuta. These reports provided information about soybean production for the state in 2019 as well as important diseases that affected soybean yields in each state. 

Common themes included late planting across the region and decline in acreage in a number of states. New and emerging/re-emerging diseases reported included southern stem canker, taproot decline, target spot, fungicide-resistant strains of the pathogens that cause frogeye leaf spot and brown spot (Cercospora sojina and Septoria glycines, respectively). In addition, many “typical” diseases/pathogens also were observed, which included brown stem rot, bacterial blight, bacterial pustule, Cercospora leaf blight, Phytophthora root rot, root-knot nematode, Sclerotinia stem rot, soybean cyst nematode, and sudden death syndrome. 

Individual presentations were provided by some attendees:

Joe Laforest gave an update on “Soybean rust mapping and other mapping resources available.”  Nathan Kleczewski gave a presentation on “Developing a tool to detect Phytophthora sojae pathotypes from soil.” Dan McDonald gave a presentation on “Air sampling for foliar disease pathogens.” Daren Mueller gave an update on the Crop Protection Network.

Sam Markell gave an update on the General Soybean Production and Disease Status Report for Minnesota – 2019.

In 2019, soybean was harvested on 6.8 million acres in Minnesota over the production area that extends from the Iowa to Canadian borders. The average yield across the state was 44 bu/ acre.  The acreage harvested and yield per acre were down significantly compared to 2018. Many parts of Minnesota were exceptionally wet and cool in the spring and early summer, which resulted in delayed planting and slow plant growth. Disease incidence and severity were variable over this large area. The most common and significant diseases reported were white mold, sudden death syndrome, brown stem rot, pod and stem blight, an frogeye leaf spot.  Other common diseases, albeit minor in most cases, were bacterial blight, bacterial pustule, and seedling diseases.

SCN Coalition. The Coalition was launched in 2018 and included support from USB, NCSRP, private partners (7-8 companies). SCN Coalition outreach had 18.2 million impressions. Future work was successful with NCSRP, but not USB – funded farmer tour portion. August at ISU before Farm Progress, and second in winter/national SCN conference –Savannah GA. Pre-proposals were submitted to USB – 3 were submitted – 1 no for media outreach/1 unknown/Carl’s yes – support for universities on local level to talk about SCN. Full proposal being developed Carl will be contacting for budgets, etc.

Carl Bradley gave an update on mapping fungicide resistance in Cercospora sojina. Map of confirmed counties with QoI-resistance in C. sojina (2010) - 19 states with 311 counties/parishes. Carl Bradley is maintaining the list of confirmed counties and his lab is willing to help confirm in other locations. The following labs are maintaining the lists for fungicide resistance tracking:

• Cercospora sojina – maintained by Carl Bradley


• Septoria glycines – maintained by Carl Bradley


• Cercospora kikuchiis/flagellaris – maintained by Trey Price


• Corynoespora cassiicola – maintained by??


• Rhizoctonia solani – maintained by Trey Price

Some future guidelines for fungicide screening: designating hub labs and standardizing protocols; Identifying who needs isolates/regional projects; Need for timely requests and standard sampling protocols were discussed.  

Joe Laforest update on soybean rust mapping also included an update on EDDmaps and iPiPE.

EDDmaps – 2005, data sharing platform working with other groups, clearing house for tools such as iPiPE – avoid entering data twice, respect data privacy.

Eddmaps – early detection, verification, projects, alerts, data sharing and collaboration, visualization, and monitoring and management.

iPiPE and EDDMaps merging – pest introduction (EDDnaps) to models and management (iPiPE). Four core strategies 1. Data aggregation, 2. Data warehouse, 3. Produce maps, 4. Development of modeling platform for public and private sector researchers. In 2020, there are 19 commodity programs and 8 pest programs. One set of tools is available from other programs – text alerts like downy mildew, sentinel plot monitoring, etc. Each group tells needs and they try to meet those. Farm Dog, Naturalist, myFields, Ag Pest Monitoring, Pest Watch – data is all flowing into EDDmaps. In-season reporting – county pest status, sightings (phone report at location), monitoring sites (repeated measures), bulk data from previous seasons are all available. 

Daren Mueller - CPN update on multi-state Extension products – publications. There are big changes – 2019 new webpage (3^rd version), encyclopedia of all diseases – missing tap root decline, update if you see gaps. Crop disease loss calculator using disease loss estimated from 1996 for interactive loss information. Moving forward with a webinar series (3-4 in 2020), publication type research update from a recent publication to make an Extension version, every publication will include 5-10 questions for CCA credits. If you have new ideas on publications, etc. reach out to CPN. New advisory team was established for future guidance (Loren Geisler, Marty Draper, Joe LaForest, and Courtney Gallop) 

Business meeting. 

Minutes from the last meeting were sent out prior; there were no objections. Minutes were approved.

Daren Mueller volunteered to be the next Secretary, and nominations were closed. Albert Tenuta volunteered to continue as local arrangements contact.

Discussion of the next meeting location and date occurred. The consensus appeared to be having the meeting in association with the Southern Soybean Disease Workers (SSDW) again in 2021 at the same location (Hilton Hotel, Pensacola Beach, FL). Kaitlyn Bissonnette motioned to maintain the location and Tom Allen 2^nd the motion. The date will be similar to years past the first Tuesday in March, March 2, 2021. Dr. Darcy Telenko (chair) will follow up with the SSDW and NCERA 137 members later in the year about the 2021 meeting. 

Other discussion/new business:

Carl Bradley inherited the SBR sentinel list serve (Don Hershmann) do we continue it? It was decided to end the SBR list serve as the NCIPM center can convert communications into Basecamp for no cost.

2021 IPM symposium – session ideas?

Fungicide resistance topic in field crops – Carl Bradley will pursue.

Put new job opportunities on state reports – Darcy Telenko will compile.

Next renewal of NCERA-137 is in 2024.

Meeting was adjourned at 5:00 PM.

Respectfully submitted, Darcy Telenko

 

Accomplishments

Publications

Impact Statements

Back to top

Report Information

Participants

Brief Summary of Minutes

Please see attached file below for NCERA137's annual report.

Accomplishments

Publications

Impact Statements

Back to top

Report Information

Participants

Brief Summary of Minutes

Accomplishments

<p><strong>Accomplishments: </strong></p><br /> <p><strong>Short-term outcomes: </strong>Continued collaborative efforts of the NCERA 137 multi-state working group are advancing soybean disease management recommendations.</p><br /> <p><strong>Outputs: </strong>Within participating states, information was shared through multiple platforms including winter meetings, research publications, extension publications, social media, and other web platforms. Coordinated efforts of this multi-state project enabled data exchange for regional and national recommendations including:</p><br /> <ul><br /> <li>Crop Protection Network recommendations for Fungicide Efficacy for Control of Soybean Diseases <span style="text-decoration: underline;">org/10.31274/cpn-20190620-014</span></li><br /> <li>Soybean yield loss estimates due to diseases in the United States and Ontario, Canada from 2015 to 2019. <span style="text-decoration: underline;">https://doi.org/10.1094/PHP-01-21-0013-RS </span></li><br /> <li>Meta-analysis of soybean yield response to foliar fungicides evaluated from 2005 to 2018 in the United States and Canada. <a href="https://doi.org/10.1094/PDIS-07-20-1578-RE">https://doi.org/10.1094/PDIS-07-20-1578-RE</a>.</li><br /> <li>Management of SCN and SDS with nematode-protectant seed treatments across multiple environments (manuscript in preparation)</li><br /> </ul><br /> <p><strong>Activities: </strong>NCERA 137 works under five primary objectives:</p><br /> <ul><br /> <li><em>Objective 1: Foster collaborative research and information exchange on new and emerging soybean diseases among soybean pathology scientists as well as soybean breeders and entomologists.</em></li><br /> </ul><br /> <p>Project participants work on diverse systems including pathotype diversity of <em>P. sojae</em>, QoI-resistant <em>Cercospora sojina</em>, variety screening for taproot decline, and research on soybean sudden death syndrome, white mold, Pythium and Phytophthora root and stem rot, brown stem rot, and others. Three new elite breeding lines were developed that will undergo evaluation in 2022.</p><br /> <ul><br /> <li><em>Objective 2. </em><em>Coordinate soybean yield loss estimates caused by diseases across the soybean producing region.</em></li><br /> </ul><br /> <p>Project participants are evaluating seed treatments for SCN and SDS management, facilitating submission of soil samples for SCN testing, evaluating cover crop burn down timings, planting dates, and fungicides to stay abreast of the most common disease issues and make yield loss assessments annually. Consensus fungicide efficacy data from the NCERA 137 committee forms the foundation for fungicide guidelines published annually at individual institutions and collectively through the Crop Protection Network and results in the disease loss estimate tool housed with the Crop Protection Network.</p><br /> <ul><br /> <li><em>Objective 3.</em><em>Compare data from studies of the ecology, epidemiology and management of soybean diseases.</em></li><br /> </ul><br /> <p>Work is underway to improve the Sporecaster white mold decision support tool with variety resistance information. A beta test of the updated tool is planned for 2023. Studies on populations of <em>Fusarium virguliforme </em>in the North Central Region have provided insights on the ecology and epidemiology of this pathogen. Relationships between SDS and soybean yield were also studied using meta-analysis approaches combining data from 52 field experiments conducted in Illinois, Indiana, Iowa, Michigan, Wisconsin, and Ontario Canada. The goal of this work is to lead to a SDS risk prediction tool.</p><br /> <ul><br /> <li><em>Objective 4. </em><em>Improve knowledge transfer about soybean diseases and their management to researchers, Extension personnel, farmers and agribusinesses.</em></li><br /> </ul><br /> <p>Knowledge transfer is being conducted via extension meetings, field days, webinars, newsletters, podcasts, blog posts, newspaper articles, radio spots, YouTube videos, program webpages, public media interviews, and twitter. Multi-state reports, including yield loss estimates and fungicide efficacy charts are housed with the Crop Protection Network. Many participants are also active in the SCN Coalition. &nbsp;</p><br /> <ul><br /> <li><em>Objective 5.</em><em>Continue to monitor and share information for new or reemerging pathogens of soybean in the North Central Region and develop appropriate responses to their emergence.</em></li><br /> </ul><br /> <p>Participants work with extension agents, farmers, industry, university colleagues, and respective diagnostic clinics to monitor for potential new of reemerging diseases. Many states are supporting testing of soil for SCN, monitoring for red crown rot, taproot decline, soybean rust, and spread of fungicide resistant <em>C. sojina.</em></p><br /> <p><strong>Milestones: </strong>In year 2 (10/1/20-9/30/21) of this 5 year project, collaborative research trials continue to advance understanding of disease management options. Annually, NCERA 137 participants support disease loss estimates that are used to develop the CPN disease loss calculator. This work also fosters publications to understand developing trends in regional and national disease to inform evaluations of germplasm and product efficacy screening. &nbsp;</p>

Publications

<p><strong>Publications: </strong></p><br /> <p><span style="text-decoration: underline;">Refereed Journal Articles:</span></p><br /> <ol><br /> <li>Baetsen-Young, A.M., Araldi Da Silva, G., Kandel Y.R.#, Jacobs, J.L., Byrne, A.M., Mueller, D.S., Smith, D.L., Tenuta, A.U., Wise, K.A., Day, B., and Chilvers, M.I. 2021. Influence of <em>Fusarium virguliforme</em> temporal colonization of corn, tillage, and residue management on soybean sudden death syndrome and soybean yield. Plant Disease. 105: 3250&ndash;3260. <a href="https://doi.org/10.1094/PDIS-09-20-1964-RE">https://doi.org/10.1094/PDIS-09-20-1964-RE</a><span style="text-decoration: underline;">. </span></li><br /> <li>Baetsen-Young, A.M., Swinton, S.M., Chilvers, M.I. 2021. Economic Impact of Fluopyram-Amended Seed Treatments to Reduce Soybean Yield Loss Associated with Sudden Death Syndrome. Plant Dis. 105:78-86 https://doi.org/10.1094/PDIS-04-20-0792-RE</li><br /> <li>Bissonnette K, Barizon J, Adee E, Ames K, Becker T, Biggs M, Bradley C, Brown M, Byamukama E, Chilvers M, Faske T, Harbach C, Jackson-Ziems T, Kandel Y, Kleczweksi N, Koehler A, Markell S, Mueller S, Sjarpe D, Smith D, Telenko D, and Tenuta A. (Manuscript in prep for Plant Disease) Management of SCN and SDS with nematode-protectant seed treatments across multiple environments.</li><br /> <li>Bradley, C.A., Allen, T.W., Sisson, A.J., Bergstrom, G.C., Bissonnette, K.M., Bond, J., Byamukama, E., Chilvers, M.I., Collins, A.A., Damicone, J.P., Dorrance, A.E., Dufault, N.S., Esker, P.D., Faske, T.R., Giesler, L.J., Fiorellino, N., Hartman, G.L., Hollier, C.A., Isakeit, T., Jackson-Ziems, T.A., Jardine, D.J., Kelly, H.M., Kemerait, R.C., Kleczewski, N.M., Koehler, A.M., Koenning, S.R., Kratochvil, R.J., Kurle, J.E., Malvick, D.K., Markell, S.G., Mathew, F. M., Mehl, H.L., Mehl, K., Mueller, D.S., Mueller, J.D., Nelson, B.D., Overstreet, C., Padgett, G.B., Price, P.P., Sikora, E.J., Small, I., Smith, D.L., Spurlock, T.N., Tande, C.A., Telenko, D.E.P., Tenuta, A.U., Thiessen, L.D., Warner, F., Wiebold, W.J., and Wise, K.A. 2021. Soybean yield loss estimates due to diseases in the United States and Ontario, Canada from 2015 to 2019. 2021. Plant Health Prog. 21: In press. https://doi.org/10.1094/PHP-01-21-0013-RS</li><br /> <li>Carpenter, K.A., Sisson, A.J., Kandel Y.R., Ortiz, V., Chilvers, M.I., Smith, D.L., Mueller, D.S. 2021. Effect of mowing, seeding rate, and foliar fungicide on soybean Sclerotinia stem rot and yield. Plant Health Progress https://doi.org/10.1094/PHP-11-20-0097-RS</li><br /> <li>Carpenter, K.A., Sisson, A.J., Kandel, Y.R., Chilvers, M.I., Smith, D.L., and Mueller, D.S. 2021. Effect of mechanical cutting, planting population, and foliar fungicide on soybean white mold and yield. Plant Health Progress. 22(2):129-135. <a href="https://doi.org/10.1094/PHP-11-20-0097-RS">https://doi.org/10.1094/PHP-11-20-0097-RS</a>.</li><br /> <li>Cerritos-Garcia, D.G., Granda, J. P., Matthiesen, R., Robertson, A.E. and Mideros, S. X. 2021. Effect of resistance and ethaboxam seed treatment on the management of Phytophthora root rot. Plant Health Progress <a href="https://doi.org/10.1094/PHP-08-20-0068-RS">https://doi.org/10.1094/PHP-08-20-0068-RS</a>.</li><br /> <li>Chang, H.-X., Noel, Z.A., Chilvers, M.I. 2021. A &beta;-lactamase Gene of <em>Fusarium oxysporum </em>Alters Rhizosphere Microbiota of Soybean. The Plant Journal 106, 1588&ndash;1604 doi: 10.1111/tpj.15257</li><br /> <li>Chowdhury, R. N., Okello, P. N., and Byamukama, E. 2022. Examining the interaction between <em>Phytophthora sojae</em> and soybean cyst nematode on soybean (Glycine max). Plants. 11(4): 560. https://doi.org/10.3390/plants11040560</li><br /> <li>Clevinger, E., Biyashev, R., Lerch, E., Yu, H., Charles Quigley, Song, Q., Dorrance, A.E., Robertson, A.E., Maroof. S. 2021. Identification of Quantitative Disease Resistance Loci towards Four <em>Pythium</em> Species in Soybean. Frontiers in Plant Science. doi.org/10.3389/fpls.2021.644746</li><br /> <li>Collins P.J., Tan R., Wen, Z., Boyse, J.F., Chilvers, M.I., Wang, D. 2022 Genetic mapping of host resistance to soybean sudden death syndrome <a href="https://doi.org/10.1002/csc2.20689">https://doi.org/10.1002/csc2.20689</a></li><br /> <li>Escalante, L. E., Brye, K. R., Faske, T. R. (2021). Nematode populations as affected by residue and water management in a long-term wheat-soybean double-crop system in eastern Arkansas. Applied Soil Ecology, 157, 103761. https://doi.org/10.1016/j.apsoil.2020.103761</li><br /> <li>Gambhir, N., Kodati, S., Huff, M., Silva, F., Ajayi-Oyetunde, O., Staton, M., Bradley, C., Adesemoye, A. O., and Everhart, S. E. 2021. Prevention and detection of fungicide resistance development in <em>Rhizoctonia zeae</em> from soybean and corn in Nebraska. Plant Health Progress 22:465-469. <a href="https://doi.org/10.1094/PHP-11-20-0100-SYN">https://doi.org/10.1094/PHP-11-20-0100-SYN</a>.</li><br /> <li>Hassan MK, Lawrence KS, Sikora EJ, Liles MR, Kloepper JW. Enhanced biological control of root-knot nematode, <em>Meloidogyne incognita</em>, by combined inoculation of cotton or soybean seeds with a plant growth-promoting rhizobacterium and pectin-rich orange peel. J Nematol. 2021;53:e2021-58. Published 2021 Jun 22. doi:10.21307/jofnem-2021-058</li><br /> <li>Hebb, L. M., Bradley, C. A., Mideros, S. X., Telenko, D. E. P., Wise, K. A., and Dorrance, A. E. 2022. Pathotype complexity and genetic characterization of <em>Phytophthora sojae</em> populations in Ohio, Indiana, Illinois and Kentucky. Phytopathology 112:663-681. https://doi.org/10.1094/PHYTO-12-20-0561-R. Bradley, C. A., Allen, T. W., Sisson, A. J.,</li><br /> <li>Kandel, Y.R., Phillips, X.A., Gaska, J.M., Conley, S.P., and Mueller, D.S. 2021. Effect of planting population on stem diseases of soybean in Iowa and Wisconsin. Plant Health Progress. 22(2):108-112. <a href="https://doi.org/10.1094/PHP-07-20-0062-RS">https://doi.org/10.1094/PHP-07-20-0062-RS</a>.</li><br /> <li>Kandel, Y.R., Hunt, C., Ames, K., Arneson, N., Bradley, C.A., Byamukama, E., Byrne, A., Chilvers, M.I., Giesler, L.J., Halvorson, J., Hooker, D.C., Kleczewski, N.M., Malvick, D.K., Markell, S., Potter, B., Pedersen, W.L., Smith, D.L., Tenuta, A.U., Telenko, D.E.P., Wise, K.A., and Mueller, D.S. 2021. Meta-analysis of soybean yield response to foliar fungicides evaluated from 2005 to 2018 in the United States and Canada. Plant Disease. 105: <a href="https://doi.org/10.1094/PDIS-07-20-1578-RE">https://doi.org/10.1094/PDIS-07-20-1578-RE</a>.</li><br /> <li>Kleczewski N., Kness A., and Koehler A.M. 2022. Impacts of row spacing and fungicide timing on foliar disease, greenstem and yield in double cropped soybeans grown in the Chesapeake Bay region of the United States. Plant Health Progress. PHP-10. <a href="https://doi.org/10.1094/PHP-10-21-0130-BR">https://doi.org/10.1094/PHP-10-21-0130-BR</a>.</li><br /> <li>Lin, F., Li, W., McCoy, A.G., Gao, X., Collins, P.J., Zhang, N., Wen, Z., Cao, S., Wani, S.H., Gu, C., Chilvers, M.I., Wang D. 2021. Molecular mapping of quantitative disease resistance loci for soybean partial resistance to <em>Phytophthora sansomeana</em>. TAAG 134:1977&ndash;1987 https://doi.org/10.1007/s00122-021-03799-x</li><br /> <li>Matthiessen-Anderson, R.A. Schmidt, C., Geisler, L. and Robertson, A.E. 2021. Comparison of pathotype diversity of <em>Phytophthora sojae</em> recovered from Iowa and Nebraska. Plant Health Progress 22:300-308 doi/10.1094/PHP-02-21-0016-FI.</li><br /> <li>Matthiessen-Anderson, R.A. Schmidt, C. and Robertson, A.E. 2021. Comparison of baiting methods to recover <em>Phytophthora sojae</em> from soil samples. Plant Health Progress 22:316-322 doi/10.1094/PHP-02-21-0040-FI.</li><br /> <li>Matthiesen-Anderson, R.A. and Robertson, A.E. 2021. Comparison of aggressiveness and fungicide sensitivity of four <em>Pythium</em> spp. that cause damping-off of soybean in the United States. Canadian Journal of Pl. Path. doi.org/10.1080/07060661.2021.1881162</li><br /> <li>McCaghey, M., Shao, D., Kurcezewski, J., Lindstrom, A., Ranjan, A., Whitham, S., Conley, S.P., Williams, B., Smith, D.L., and Kabbage, M. 2021. Host-induced gene silencing of a <em>Sclerotinia sclerotiorum</em> oxaloacetate acetylhydrolase using bean pod mottle virus as a vehicle reduces disease on soybean. Frontiers in Plant Science-Plant Pathogen Interactions. <a href="https://doi.org/10.3389/fpls.2021.677631">https://doi.org/10.3389/fpls.2021.677631</a>.</li><br /> <li>McCoy, A.M., Noel, Z., Jacobs, J., Clouse, K., Chilvers, M.I. accepted June 28, 2021. <em>Phytophthora sojae</em> pathotype distribution and fungicide sensitivity in Michigan. Plant Disease doi.org/10.1094/PDIS-03-21-0443-RE</li><br /> <li>McCoy, A., Byrne, A.M., Anderson, G., Kurle, J., Jacobs, J., Telenko, D., Chilvers, M.I. Submitted Feb 3, 2022, Accepted Mar 25, 2022. Oomicide treated soybean seeds reduce early season stand loss to <em>Phytophthora sojae</em>. Crop Protection</li><br /> <li>Mueller, B., Smith, D.L., Webster, W., and Reed, H. 2021. Evaluation of an herbicide and fungicides for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2020. Plant Disease Management Reports 15:CF153.</li><br /> <li>Mueller, B., Smith, D.L., Webster, W., and Reed, H. 2021. Evaluation of foliar fungicides for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2020. Plant Disease Management Reports 15:CF154.</li><br /> <li>Noel, Z.A., Longley, R., Benucci, G.M.N., Trail, F., Chilvers, M., Bonito, G. 2022. Non-target impacts of fungicide disturbance on phyllosphere yeasts in conventional and no-till management. ISME Communications 2, 19 https://doi.org/10.1038/s43705-022-00103-w</li><br /> <li>Neves, D. L., Berghuis, B. G., Halvorson, J. M., Hansen, B. C., Markell, S. G., and Bradley, C. A. 2022. First detection of frogeye leaf spot in soybean fields in North Dakota and the G143A mutation in the cytochrome b gene of <em>Cercospora sojina</em>. Plant Health Progress. <a href="https://doi.org/10.1094/PHP-10-21-0132-BR">https://doi.org/10.1094/PHP-10-21-0132-BR</a>.</li><br /> <li>Neves, D. L., Wang, A., Weems, J. D., Kelly, H. M., Mueller, D. S., Farman, M., and Bradley, C. A. 2022. Identification of <em>Septoria glycines</em> isolates from soybean with resistance to quinone outside inhibitor fungicides. Plant Disease. <a href="https://doi.org/10.1094/PDIS-08-21-1836-RE">https://doi.org/10.1094/PDIS-08-21-1836-RE</a>.</li><br /> <li>Neves, D. L., Webster, R. W., Smith, D. L., and Bradley, C. A. 2022. The G143A mutation in the cytochrome b gene is associated with quinone outside inhibitor fungicide resistance in <em>Cercospora sojina</em> from soybean fields in Wisconsin. Plant Health Progress. <a href="https://doi.org/10.1094/PHP-09-21-0115-BR">https://doi.org/10.1094/PHP-09-21-0115-BR</a>.</li><br /> <li>Neves, D. L., and Bradley, C. A. 2021. Baseline sensitivity of <em>Cercospora sojina</em> and <em>Corynespora cassiicola</em> to pydiflumetofen. Crop Protection 147:105461. <a href="https://doi.org/10.1016/j.cropro.2020.105461">https://doi.org/10.1016/j.cropro.2020.105461</a>.</li><br /> <li>Nian, J., Yu, M., Bradley, C. A., and Zhao, Y. 2021. Lysobacter enzymogenes strain C3 suppresses mycelium growth and spore germination of eight soybean fungal and oomycete pathogens and decreases disease incidences. Biological Control 152:104424. <a href="https://doi.org/10.1016/j.biocontrol.2020.104424">https://doi.org/10.1016/j.biocontrol.2020.104424</a>.</li><br /> <li>Petrovic, K., Skaltsas, D., Castlebury, S., Kontz, B., Allen, T., Chilvers, M.I., Fisher Gregory, N., Kelly, H.M., Koehler, A.M., Kleczewski, N.M., Mueller, D.S., Price, T., Smith, D.L., F.M. Mathew. 2021. Diaporthe seed decay of soybean [<em>Glycine max</em> (L.) Merr.] is endemic in the United States, but new fungi are involved. Plant Disease https://doi.org/10.1094/PDIS-03-20-0604-RE</li><br /> <li>Pimentel, Mirian; Srour, Ali; Warner, Amanda; Bond, Jason; Bradley, Carl; Rupe, John; Chilvers, Martin; Rojas, J. Alejandro; Jacobs, Janette; Little, Christopher; Robertson, Alison; Geisler, Loren; Malvick, Dean; Wise, Kiersten; Tenuta, Albert; Fakhoury, Ahmad Submitted Jul 22, 2020. Ecology and Diversity of Fungal Species Associated with Soybean Seedling Diseases in the Midwestern United States. 2022 Journal of Applied Microbiology Journal of Applied Microbiology, 00, 1&ndash;15 https://doi.org/10.1111/jam.15507</li><br /> <li>Pimentel, M. F., Arnao, E., Warner, A. J., Rocha, L. F., Subedi, A., Elsharif, N., Chilvers, M. I., Matthiesen, R., Robertson, A. E., Bradley, C. A., Pedersen, D. K., Reuter-Carlson, U., Lacey, J. V., Bond, J. P., and Fakhoury, A. M. 2022. Reduction of <em>Pythium</em> damping-off in soybean by biocontrol seed treatment. Plant Disease. <a href="https://doi.org/10.1094/PDIS-06-21-1313-RE">https://doi.org/10.1094/PDIS-06-21-1313-RE</a>.</li><br /> <li>Pimentel, M., Srour, A.Y., Warner, A.J., Bond, J.P., Bradley, C., Rupe, J., Chilvers, M., Little, C., Robertson, A.E., Geisler, L., Malvick, D., Wise, K., Tenuta, A. and Fakhoury, A.F. XXX. Ecology and diversity of fungal species associated with soybean seedling disease in the US Midwest. J. Appl. Microbiol. (in press).</li><br /> <li>Phillips, X., Kandel, Y.R., and Mueller, D.S. 2021. Impact of foliar fungicides on frogeye leaf spot severity, radiation use efficiency, and yield of soybean in Iowa. Agronomy. 11(9):1785 <a href="https://doi.org/10.3390/agronomy11091785">https://doi.org/10.3390/agronomy11091785</a>.</li><br /> <li>Rod, K. S., Bradley, C. A., Shockley, J., and Knott, C. A. 2021. Double-crop soybean management practices for high yield and profitability. Crop, Forage &amp; Turfgrass Management 7:e20119. https://doi.org/10.1002/cft2.20119. Zhang, G., Neves, D. L., Krausz, K., and Bradley, C. A. 2021. Sensitivity of <em>Cercospora sojina</em> to demethylation inhibitor and methyl benzimidazole carbamate fungicides. Crop Protection 149:105765. <a href="https://doi.org/10.1016/j.cropro.2021.105765">https://doi.org/10.1016/j.cropro.2021.105765</a>.</li><br /> <li>Sang, H., Chang, H.-X., Choi, S., Son, D., Lee, G., Chilvers, M.I. 2021. Genome-wide transcriptional response of the causal soybean sudden death syndrome pathogen <em>Fusarium virguliforme</em> to a succinate dehydrogenase inhibitor fluopyram. Pest Management Science https://doi.org/10.1002/ps.6657</li><br /> <li>Shao, D.D., Smith, D.L., Kabbage, M., and Roth, M. 2021. Effectors of plant necrotrophic fungi. Frontiers in Plant Science-Plant Pathogen Interactions. <a href="https://doi.org/10.3389/fpls.2021.687713">https://doi.org/10.3389/fpls.2021.687713</a>.</li><br /> <li>Sharma, P., Malvick, D.K, and Chanda, A. 2021. Sensitivity of <em>Rhizoctonia solani</em> AG 2-2 isolates from soybean and sugar beet to selected SDHI and QoI fungicides. Plant Disease 105:3573-3579.</li><br /> <li>Webster, R.W., Roth, M.G., Mueller, B.D., Mueller, D.S., Chilvers, M.I., Willbur, J.F., Mourtzinis, S., Conley, S.P., Smith, D.L. Submitted Sept 2021 Accepted Nov 2021. Integration of row spacing, seeding rates, and fungicide application for control of Sclerotinia stem rot in <em>Glycine max</em>. Plant Disease DOI:10.1094/PDIS-09-21-1931-RE</li><br /> <li>Webster, R.W., Roth, M.G., Reed, H., Mueller, B., Groves, C.R., McCaghey, M., Chilvers, M.I., Mueller, D.S., Kabbage, M., and Smith, D.L. 2021. Identification of soybean (<em>Glycine max</em>) check lines for evaluating genetic resistance to Sclerotinia stem rot. Plant Disease. 105: In press. <a href="https://doi.org/10.1094/PDIS-10-20-2193-RE">https://doi.org/10.1094/PDIS-10-20-2193-RE</a>.</li><br /> <li>Westrick, N.M., Smith, D.L., and Kabbage, M. 2021. Disarming the host: Detoxification of plant defense compounds during fungal necrotrophy. Frontiers in Plant Science-Plant Pathogen Interactions. <a href="https://doi.org/10.3389/fpls.2021.651716">https://doi.org/10.3389/fpls.2021.651716</a>.</li><br /> <li>Zambrana-Echevarr&iacute;a, C., Roth, M.G., Dasgupta, R., German, T.L., Groves, C.L., and Smith, D.L. 2021. Sensitive and specific qPCR and nested RT-PCR assays for the detection of Tobacco streak virus in soybean. PhytoFrontiers. <a href="https://doi.org/10.1094/PHYTOFR-11-20-0036-R">https://doi.org/10.1094/PHYTOFR-11-20-0036-R</a>.</li><br /> </ol><br /> <p>&nbsp;</p><br /> <p><span style="text-decoration: underline;">Abstracts/Proceedings:</span></p><br /> <ol><br /> <li>Bissonnette K (2021) Utilizing regionally coordinated nematode-protectant seed treatment trials and partnerships to enhance applied nematology research and extension. APS National Meeting, August 4, 2021.</li><br /> <li>Barizon J, Biggs M, Eichenburch S, Seyer B, and Bissonnette K (2022) Role of HG type in nematode-protectant seed treatment effectiveness. Proc. So. Soybean Dis. Workers</li><br /> <li>Eichenburch S, Seyer B, Barizon J, Biggs M, and Bissonnette K (2021) Evaluating soybean cyst nematode seed treatments in populations with high and low PI88788 female incides. 2021 Summer Undergraduate Research and Creative Achievements Forum.</li><br /> <li>Edgar Humberto Nieto-Lopez, Mr. Thomas Jose Justo Miorini, Cristian A. Wulkop-Gil, Martin Chilvers, Loren J. Giesler, Tamra A. Jackson-Ziems, Mehdi Kabbage, Daren S. Mueller, Damon L. Smith, Dr. Juan Manuel Tovar-Pedraza, Dr. Jaime F. Willbur and Dr. Sydney E. Everhart Characterization of <em>Sclerotinia sclerotiorum</em> from U.S. soybean and dry bean, and from different regions and climates using AmpSeq. APS Plant Health 2021.</li><br /> </ol><br /> <ol start="5"><br /> <li>Edgar Humberto Nieto-Lopez, Mr. Thomas Jose Justo Miorini, Cristian A. Wulkop-Gil, Martin Chilvers, Loren J. Giesler, Tamra A. Jackson-Ziems, Mehdi Kabbage, Daren S. Mueller, Damon L. Smith, Dr. Juan Manuel Tovar-Pedraza, Dr. Jaime F. Willbur and Dr. Sydney E. Everhart, Fungicide sensitivity of <em>Sclerotinia sclerotiorum</em> from USA soybean and dry bean, compared to different regions and climates. APS Plant Health 2021.</li><br /> <li>Galagedara, N., Doyle, V., Price, P., Robertson, C. L., Thomas-Sharma, S. 2021. Comparing the efficiency of spore traps to capture airborne inoculum of <em>Cercospora</em> spp., on soybean. Phytopathology 111: S2.28.</li><br /> <li>Ingram, J., Dangal, N. K., Braun, N., Kontz, B., and Mathew, F. M. 2021. Impact of phosphorus and potassium fertilizers on endophytic <em>Fusarium </em>spp. in soybean. American Phytopathological Society Annual Meeting (Virtual). August 2-6, 2021.</li><br /> <li>Just B and Bissonnette K (2021) Assessing Missouri soybean fields for fungicide-resistant <em>Cercospora sojina</em>. Proc. So. Soybean Dis. Workers.</li><br /> <li>Kessler A.C. and Koehler A.M. 2021. Survey of Nematodes in Delaware and Maryland. Nematodes in Atlantic Soybeans Production Webinar.</li><br /> <li>Kessler A.C. and Koehler A.M. 2021. Characterization and management of Soybean Cyst Nematode in Mid Atlantic soybeans. APS Potomac Division Meeting, Virtual.</li><br /> <li>Kessler A. and Koehler A.M. 2021. Two-year survey of <em>Diaporthe </em>species in soybean across Delaware and Maryland. APS National Meeting, Virtual.</li><br /> <li>Rodriguez, K., Robertson, C. L., Price., P., Doyle, V., Thomas-Sharma, S. 2021. Screening of commercial soybean cultivars for resistance to aerial blight caused by <em>Rhizoctonia solani</em> AG1-IA. Phytopathology 111: S2.23.</li><br /> <li>Sikora, E. J. and K. Conner. 2021. Observations from Soybean Rust Monitoring &amp; Fungicide Field Demonstrations in Alabama in 2020. Proceeding of the Southern Soybean Disease Workers Annual Meeting. Page 21-22.</li><br /> <li>Smith, D.L. 2021. Let&rsquo;s talk: Using fungicides on corn and soybeans and how to maximize ROI. Proceedings of the 2021 Wisconsin Agribusiness Classic. Vol 5:42.</li><br /> <li>Sureshbabu, B. M., Braun, N., Kontz, B., Subramanian, S., and Mathew, F. 2021. Evaluating the effect of fungicide on endophytes in soybean (<em>Glycine max</em> L.). The Bean Improvement Cooperative (BIC) and the North American Pulse Improvement Association (NAPIA) Annual Meeting (Virtual). November 2-4, 2021.</li><br /> <li>Webster, R.W., McCaghey, M., Mueller, Mueller, D.S., Chilvers, M.I., Conley, S.P., and Smith, D.L. 2021. Improved management of soybean white mold: Revisiting genetic resistance, integrated management, and disease prediction. Proceedings of the 2021 Wisconsin Agribusiness Classic. Vol 5:32-41.</li><br /> <li>Viviana Ortiz Londono, Hao-Xun Chang, Hyunkyu Sang, Kiersten A. Wise and Martin Chilvers Potential adaptive genetic variation in <em>Macrophomina phaseolina</em> as revealed by environmental association on the whole-genome data APS Plant Health 2021.</li><br /> <li>Yuba R. Kandel, Mariama Brown, Martin Chilvers, Nathan M. Kleczewski, Darcy E. P. Telenko, Albert U. Tenuta, Damon L. Smith and Daren S. Mueller. Evaluation of seed treatment fungicides for management of root rot and foliar symptoms of sudden death syndrome and grain yield response of soybean. APS Plant Health 2021.</li><br /> <li>Zachary A. Noel, Reid Longley, Gian Maria Niccol&ograve; Benucci, Martin Chilvers, Dr. Frances Trail and Gregory Bonito, Non-target fungicidal effects in the corn and soybean microbiome. APS Plant Health 2021.</li><br /> <li>Zachary A. Noel, Reid Longley, Gian Maria Niccol&ograve; Benucci, Martin Chilvers, Dr. Frances Trail and Gregory Bonito, Non-target fungicidal effects in the corn and soybean microbiome Mycological society of America.</li><br /> </ol><br /> <p>&nbsp;</p><br /> <p><span style="text-decoration: underline;">Extension and Outreach:</span></p><br /> <ol><br /> <li>Barizon J and Bissonnette K (2021) Harvest is the Perfect Time for Checking Your Field for SCN. Mizzou Crop &amp; Pest News: https://ipm.missouri.edu/cropPest/2021/10/scnNumber-KB/ Bissonnette (20210.)&nbsp;</li><br /> <li>Bartels, M. (Section Lead), Jackson-Ziems, T. A., Harveson, R. M., Wegulo, S. N., Timmerman, A., Sivits, S., and Broderick, K. 2021. Plant Disease Management. Pages 267-312. In: 2021 Guide for Weed, Disease, and Insect Management in Nebraska. Nebraska Extension EC130. 367 pp. [I W].</li><br /> <li>Bartels, M., Broderick, K., and Jackson-Ziems, T. A. 2021. Managing SCN Starts Now. CropWatch Newsletter. March 19, 2021. Nebraska Extension. [I W] <a href="https://cropwatch.unl.edu/2021/managing-soybean-cyst-nematode-starts-now">https://cropwatch.unl.edu/2021/managing-soybean-cyst-nematode-starts-now</a>.</li><br /> <li>Bartels, M., Jackson-Ziems, T. A., and Broderick, K. 2021. Sample for Soybean Cyst Nematode this Fall. Crop Watch Newsletter. September 28, 2021. Nebraska Extension. [I W] <a href="https://cropwatch.unl.edu/2021/sample-soybean-cyst-nematode-fall">https://cropwatch.unl.edu/2021/sample-soybean-cyst-nematode-fall</a>.</li><br /> <li>Bartels, M., and Jackson-Ziems, T. A. 2021. Seed Selection Can Help Manage Diseases Next Year. Crop Watch Newsletter. October 27, 2021. Nebraska Extension. [I W] https://cropwatch.unl.edu/2021/seed-selection-can-help-manage-diseases-next-year.</li><br /> <li>Bish M (2022) Soybean Cyst Nematode: Out of Sight, Out of Mind? Mizzou Crop &amp; Pest News: https://ipm.missouri.edu/cropPest/2022/4/soybeanCystNematode-MB/.</li><br /> <li>Bissonnette K, Bish M, and Carraher M (2022) Top 3 Emerging Diseases Going into 2022. Mizzou Crop &amp; Pest News: <a href="https://ipm.missouri.edu/cropPest/2022/3/emergingDisease-KB/">https://ipm.missouri.edu/cropPest/2022/3/emergingDisease-KB/</a>.</li><br /> <li>Bradley, C. 2021. Soybean seed quality issues due to fungal infections. Kentucky Pest News. https://kentuckypestnews.wordpress.com/2021/10/19/soybean-seed-quality-issues-due-to-fungal-infections/.</li><br /> <li>Bradley, C. 2021. Red crown rot of soybean observed for the first time in Kentucky. Kentucky Pest News. <a href="https://kentuckypestnews.wordpress.com/2021/09/21/red-crown-rot-of-soybean-observed-for-the-first-time-in-kentucky/">https://kentuckypestnews.wordpress.com/2021/09/21/red-crown-rot-of-soybean-observed-for-the-first-time-in-kentucky/</a>.</li><br /> <li>Bradley, C. 2021. Management of soybean cyst nematode starts with soil sampling this Fall or Spring. Kentucky Pest News. <a href="https://kentuckypestnews.wordpress.com/2021/09/14/management-of-soybean-cyst-nematode-starts-with-soil-sampling-this-fall-or-spring-4/">https://kentuckypestnews.wordpress.com/2021/09/14/management-of-soybean-cyst-nematode-starts-with-soil-sampling-this-fall-or-spring-4/</a>.</li><br /> <li>Bradley, C. 2021. Foliar fungicide consideration for soybean. Kentucky Pest News. <a href="https://kentuckypestnews.wordpress.com/2021/07/13/foliar-fungicide-considerations-for-soybean-3/">https://kentuckypestnews.wordpress.com/2021/07/13/foliar-fungicide-considerations-for-soybean-3/</a>.</li><br /> <li>Bradley, C. 2021. It's time to sample for soybean cyst nematode in your fields. Kentucky Pest News. <a href="https://kentuckypestnews.wordpress.com/2021/04/13/its-time-to-sample-for-soybean-cyst-nematode-in-your-fields/">https://kentuckypestnews.wordpress.com/2021/04/13/its-time-to-sample-for-soybean-cyst-nematode-in-your-fields/</a>.</li><br /> <li>Bradley, C., Allen, T., Mueller, D., Tenuta, A., Mehl, K., and Sisson, A. 2022. Soybean disease loss estimates from the United States and Ontario, Canada - 2021. Crop Protection Network. doi.org/10.31274/cpn-20220413-0.</li><br /> <li>Brown, M. T., Ravellette, J. D., and Telenko, D. E. P. 2021. Evaluation of seed treatment for management of sudden death syndrome (SDS) in central Indiana, 2020. Plant Disease Management Reports 15: CF079.</li><br /> <li>Brown, M. T., Ravellette, J. D., and Telenko, D. E. P. 2021. Evaluation of seed treatments for disease control on soybean in central Indiana, 2020. Plant Disease Management Reports 15: N001.</li><br /> <li>Brown, M. T., Ravellette, J. D., and Telenko, D. E. P. 2021. Evaluation of variety, seed treatments, and planting population on soybean in central Indiana, 2020. Plant Disease Management Reports. 15:CF077.</li><br /> <li>Brown, M. T., Ravellette, J. D., and Telenko, D. E. P. 2021. Evaluation of variety, seed treatments, and planting population on soybean in northern Indiana, 2020. Plant Disease Management Reports. 15: CF078.</li><br /> <li>Byamukama, E. Strunk, C., and Tande, C. 2021. Charcoal and Fusarium rots observed in early senescing soybean plants. SDSU Extension; Published August 2021.</li><br /> <li>Byamukama, E., Strunk, C., and Mathew, F. 2021. Be aware of fungicide resistance in field crops. SDSU Extension; Published August 2021.</li><br /> <li>Byamukama, E., Strunk, C., and Mathew, F. 2021. Stem canker developing in some soybean fields. SDSU Extension; Published August 2021.</li><br /> <li>Byamukama, E. and Strunk, C. 2021. Bacterial blight developing in some soybean fields. SDSU Extension; Published July 2021.</li><br /> <li>Byamukama, E., Varenhorst, A., Strunk, C., Rozeboom, P., and Wagner, P. 2021. Monitor soybean for bean leaf beetle activity. SDSU Extension; Published July 2021.</li><br /> <li>Byamukama, E., Strunk, C., Clark, J., and Bly, A. 2021. What is causing soybeans to yellow at this time? SDSU Extension; Published July 2021.</li><br /> <li>Byamukama, E., Strunk, C., and Tande, C. 2021. Drought conditions may increase SCN population in the soil. SDSU Extension; Published July 2021.</li><br /> <li>Varenhorst, A., Rozeboom, P., Wagner, P., Strunk, C., and Byamukama, E. 2021. Monitor soybean for bean leaf beetle activity. South Dakota State University Extension. Published online 7/23/2021</li><br /> <li>Chowdhury, I., A., Yan, G., Halvorson, J., Thapa, A., Halvorson, M. and Markell, S. 2022. Soybean Cyst Nematode (SCN). NDSU Extension Publication PP1732.</li><br /> <li>Conrad, A. M., Ravellette, J. D., Shim, S., and Telenko, D. E. P. 2021. Fungicide comparison for white mold in soybean in northwest Indiana, 2020. Plant Disease Management Reports. 15:CF019.</li><br /> <li>Conrad, A. M., Ravellette, J. D., Shim, S., and Telenko, D. E. P. 2021.Fungicide comparison for soybean diseases in central Indiana, 2020. Plant Disease Management Reports. 15:CF020.</li><br /> <li>Faske, T. R., Mueller, J., Thiessen, L. (2021). Root-Knot Nematodes (August 26, 2021, ed.). Crop Protection Network. <a href="http://doi.org/10.31274/cpn-20210820-2">http://doi.org/10.31274/cpn-20210820-2</a>.</li><br /> <li>Jackson-Ziems, T. A. 2021. Strategies to Manage SCN. Nebraska Soybean Board. Spring 2021. P. 17. [I W] https://nebraskasoybeans.org/wp-content/uploads/2021/04/367728-NE_Soybean_Assoc-Magazine_Spring_2021_LoRes-2.pdf.</li><br /> <li>Jackson-Ziems, T. A. 2021. Midseason Disease Management Tips. Nebraska Soybean Board. Summer 2021. P. 25. [I W] <a href="https://nebraskasoybeans.org/wp-content/uploads/2021/07/SoybeaNebraska-Summer-FY21-web-ready-version.pdf">https://nebraskasoybeans.org/wp-content/uploads/2021/07/SoybeaNebraska-Summer-FY21-web-ready-version.pdf</a>.</li><br /> <li>Jackson-Ziems, T. A. 2021. Crop and Soybean Disease Update: Southern rust, Frogeye Leaf Spot, and Phytophthora root and stem rot. Crop Watch Newsletter. July 23, 2021. Nebraska Extension. [I W] https://cropwatch.unl.edu/2021/corn-and-soybean-disease-update-southern-rust-frogeye-leaf-spot-and-phytophthora-root-and-stem.</li><br /> <li>Kessler L. and Koehler A.M. 2021. Evaluation of foliar fungicides for management of soybean diseases in Delaware, 2020. Plant Disease Management Reports. 15:CF090.</li><br /> <li>Koehler A.M. Scouting for Soybean Cyst Nematodes. Delaware Weekly Crop Update. 6/4/21.</li><br /> <li>Koehler A.M. Resources for 2021 Corn and Soybean Fungicide Recommendations. Delaware Weekly Crop Update. 6/18/21.</li><br /> <li>Koehler A.M. Soybean Disease Updates. Delaware Weekly Crop Update. 7/30/21.</li><br /> <li>Koehler A.M. Field Crop Disease Updates. Delaware Weekly Crop Update. 8/6/21.</li><br /> <li>Koehler A.M. Soil Sampling for Nematodes in Soybeans. Delaware Weekly Crop Update. 9/10/21.</li><br /> <li>Mane, A. G., and Jackson-Ziems, T. A. 2021.Fungicide Resistance in FLS and Use of Foliar Fungicides in Nebraska. SoybeaNebraska. Nebraska Soybean Board. Spring 2021. P. 14. [E W] <a href="https://nebraskasoybeans.org/wp-content/uploads/2021/04/367728-NE_Soybean_Assoc-Magazine_Spring_2021_LoRes-2.pdf">https://nebraskasoybeans.org/wp-content/uploads/2021/04/367728-NE_Soybean_Assoc-Magazine_Spring_2021_LoRes-2.pdf</a>.</li><br /> <li>Mane A.G., Everhart S.E., and Jackson-Ziems T.A., March 19, 2021. Nebraska soybean foliar fungicide survey. CropWatch. Nebraska Extension. [I W] https://cropwatch.unl.edu/2021/nebraska-soybean-foliar-fungicide-use-survey.</li><br /> <li>Moseley, D., Harrison, S., Padgett, B., Price, T., Harrell, D., Gravois, K., La Bonte, D., and Foster, M. 2021. Variety testing: A critical component for sustainable production systems. Louisiana Agriculture Magazine. 64(1).&nbsp;</li><br /> <li>Moseley, D., B. Padgett, S. Brown, D. Stephenson, and R. Parvej. 2021. Planting considerations for soybean. Louisiana Crops Newsletter. Louisiana State University AgCenter, Baton Rouge, LA. 11(1).</li><br /> <li>Mueller, D., Wise, K., Bradley, C., Sisson, A., Smith, D., Hodgson, E., Tenuta, A., Friskop, A., Conley, S., Faske, T., Sikora, E., Giesler, L., and Chilvers, M. 2021. Fungicide Use in Field Crops. Crop Protection Network. CPN 4008. Doi.org/10.31274/cpn-20210329-0.</li><br /> <li>Pi&ntilde;eros-Guerrero, N., Ravellette, J. D., and Telenko, D. E. P. 2021. Evaluation of fungicides for foliar diseases on soybean in central Indiana, 2020. Plant Disease Management Reports. 15: CF080.</li><br /> <li>Pi&ntilde;eros-Guerrero, N., Ravellette, J. D., and Telenko, D. E. P. 2021. Fungicide comparison for soybean diseases in southwestern Indiana, 2020. Plant Disease Management Reports. 15:CF081.</li><br /> <li>Padgett, Guy B., Singh, Raghuwinder., Clark, Christopher A., Hoy, Jeffrey W., Price, III, Paul P, Watson, T., Brown, Kimberly Pope, Ferguson, Mary Helen. "2022 Louisiana Plant Disease Management Guide (online store item)". 2021, Publication No. 1802.&nbsp;</li><br /> <li>Price, T., B. Padgett, M. Purvis, D. Ezell, D. Harrell, J. Leonards, F. Collins, L. Lee, J. Hebert, and J. Meaux. 2021. On-farm research identifies options for managing fungicide-resistant aerial blight of soybean. Louisiana Agric. 64:3. 16-17.&nbsp;</li><br /> <li>Reinders, J. D., Tharnish, B. R., Brungardt, J. L., and Jackson-Ziems, T. A. 2021. Efficacy of foliar fungicides on frogeye leaf spot and Sclerotinia stem rot of soybean in Nebraska, 2020. American Phytopathological Society. Plant Disease Management Reports. 15:CF139. [I F E A W].</li><br /> <li>Roth, M.G., Webster, R.W., Reed, H., Mueller, B., Groves, C.L., McCaghey, M., Chilvers, M.I., Mueller, D.S., Kabbage, M., and Smith, D. 2021. Improved screening method for genetic resistance to white mold (Sclerotinia stem rot) in soybean. CPN 5006. https://doi.org/10.31274/cpn-20210318-1.</li><br /> <li>Shim, S., Ravellette, J. D., and Telenko, D. E. P. 2021. Compare the efficacy of seed treatments in soybean in northwestern Indiana, 2020. Plant Disease Management Reports. 15: CF143.</li><br /> <li>Shim, S. and Telenko, D. 2022. Applied Research in Field Crop Pathology for Indiana 2021. Jan 2022. Purdue Extension.BP-217-W.</li><br /> <li>Sikora, E. Seedling diseases of soybeans. Alabama Crops Report. 2/16/21.</li><br /> <li>Sikora, E. 2021. Soybean disease update. Alabama Crops Report. 7/20/21.</li><br /> <li>Sikora, E. 2021. Southern rust on the move in south Alabama. Alabama Crops Report. 7/20/21.</li><br /> <li>Sikora, E. Frogeye leaf spot detected on soybeans in Brewton, AL. Alabama Crops Report. 8/3/21.</li><br /> <li>Sikora, E. Soybean rust detected in Conecuh, Dale, Henry, and Pike counties. Alabama Crops Report. 8/3/21</li><br /> <li>Sikora, E. 2021. Keep an eye out for taproot decline. Alabama Crops Report. 8/17/21.</li><br /> <li>Sikora, E. 2021. Taproot decline emerging as a new problem for Alabama soybean growers. Alabama Crops Report. 9/14/21.</li><br /> <li>Sikora, E. 2021. Soybean rust in 2021. Alabama Crops Report. 9/28/21.</li><br /> <li>Sikora, E. 2021. Soil sampling in the fall is a good time to detect nematode problems in soybeans. Alabama Crops Report. 10/14/21.</li><br /> <li>Sikora, E. 2021. Results from fungicide trials for soybean rust management at Fairhope, AL. Alabama Crops Report. 12/16/21.</li><br /> <li>Smith, D.L., Mueller, B., and Nicolli, C.P. 2020. Wisconsin soybean and corn disease update. Aug. 12. Wisconsin Crop Manager. https://ipcm.wisc.edu/blog/2021/08/wisconsin-soybean-and-corn-disease-update-august-2-2021/.</li><br /> <li>Smith, D.L. 2021. Wisconsin soybean and corn disease update. Jul. 7. Wisconsin Crop Manager. https://ipcm.wisc.edu/blog/2021/07/14290/.</li><br /> <li>Smith, D.L. 2021. Fireworks fly! Time to think about white mold management in soybeans in Wisconsin. Jul. 3. Wisconsin Crop Manager. https://ipcm.wisc.edu/blog/2021/07/fireworks-fly-time-to-think-about-white-mold-management-in-soybeans-in-wisconsin/.</li><br /> <li>Smith, D.L. 2021. Crop protection network webinars on managing soybean diseases. Mar 5, Wisconsin Crop Manager. https://ipcm.wisc.edu/blog/2021/03/crop-protection-network-webinars-on-managing-soybean-diseases/.</li><br /> <li>Smith, D.L. and Mueller, B. 2021. 2020 Wisconsin field crops fungicide test summary. Feb. 12. Wisconsin Crop Manager. https://ipcm.wisc.edu/blog/2021/02/2020-wisconsin-field-crops-fungicide-test-summary/.</li><br /> <li>Telenko, D. 2021. Foliar disease update in Indiana corn and soybean. Purdue Extension. Pest and Crop Newsletter. Issue 2021.17.</li><br /> <li>Telenko, D. 2021. Update on disease risk in soybean and corn in Indiana. Purdue Extension. Pest and Crop Newsletter. Issue. 2021.16.</li><br /> <li>Tharnish, B. R., Brungardt, J. L., and Jackson-Ziems, T. A. 2021. Effects of Delaro and Delaro Complete on corn in south central Nebraska, 2020. American Phytopathological Society. Plant Disease Management Reports. 15:CF087. [I F E A W].</li><br /> <li>Wise, K., Brewer, M., Bradley, C., Mueller, D., Sisson, A., Tenuta, A., Allen, T., Bergstrom, G., Bissonnette, K., Byamukama, E., Chilvers, M., Dufault, N., Faske, T., Friskop, A., Kelly, H., Koehler, A., Langston, D., Markell, S., Marshall, J., Martinez-Espinoza, A., Paul, P., Robertson, A., Smith, D., Telenko, D., and Vincelli, P. 2021. Fungicides are more than a plant disease management tool. Crop Protection Network. doi.org/10.31274/cpn-20211011-000.</li><br /> <li>Effect of cover crop and seed treatment on stand establishment in corn, cotton, and soybeans. Louisiana Agriculture.</li><br /> <li>Louisiana Plant Pathology Disease Identification and Management Series: Taproot Decline of Soybean. 2021, LSU AgCenter Publication No. 3802.</li><br /> <li>Missouri Soybean Disease Guide. Published by Missouri Soybean Merchandising Council. <a href="https://mosoy.org/wp-content/uploads/2021/03/59934-21-MO-Disease-Guide.pdf">https://mosoy.org/wp-content/uploads/2021/03/59934-21-MO-Disease-Guide.pdf</a>.</li><br /> <li>Frogeye leaf spot <a href="https://www.canr.msu.edu/news/fungicide-resistance-in-frogeye-leaf-spot-of-soybean-in-michigan">https://www.canr.msu.edu/news/fungicide-resistance-in-frogeye-leaf-spot-of-soybean-in-michigan</a>.</li><br /> <li>Variety selection is critical for disease management. Austin McCoy and Martin Chilvers. Michigan Soybean News Vol 13 Iss 4. Fall 2021.</li><br /> <li>Scout corn and beans for foliar diseases Janelle Brose, Farm News Media https://www.michiganfarmnews.com/video-scout-corn-and-beans-for-foliar-diseases.</li><br /> <li>Tar spot and SCN &ndash; Nicole Heslip. Brownfield Ag News. July 23, 2021.</li><br /> <li>Managing soybean diseases with foliar fungicide applications. Chilvers M., and Staton, M. July 14, 2021 <a href="https://www.canr.msu.edu/news/managing-soybean-diseases-with-foliar-fungicide-applications">https://www.canr.msu.edu/news/managing-soybean-diseases-with-foliar-fungicide-applications</a>.</li><br /> <li>Time to scout for SCN females and other associated plant diseases by Julianne Johnston. The SCN Coalition. July 13, 2021.</li><br /> <li>Boosting Soybean Resistance to Fight Phytophthora Stem and Root Rot. Soybean Research Information Network article by Carol Brown. July 6, 2021 <a href="https://soybeanresearchinfo.com/research-highlight/boosting-soybean-resistance-to-fight-phytophthora-stem-and-root-rot/?utm_term=&amp;utm_campaign=SRIN%202021&amp;utm_medium=email&amp;_hsmi=137298094&amp;_hsenc=p2ANqtz-8332er2EgQoaoux4EURIlAAm3CsxpkbFqgz_rZ712PWUN1f8PFc5ASQxN_aI8v6j9P_Dm2ejbYTf_rhfr6urJJA3-vNw&amp;utm_content=137298094&amp;utm_source=hs_email">https://soybeanresearchinfo.com/research-highlight/boosting-soybean-resistance-to-fight-phytophthora-stem-and-root-rot/?utm_term=&amp;utm_campaign=SRIN%202021&amp;utm_medium=email&amp;_hsmi=137298094&amp;_hsenc=p2ANqtz-8332er2EgQoaoux4EURIlAAm3CsxpkbFqgz_rZ712PWUN1f8PFc5ASQxN_aI8v6j9P_Dm2ejbYTf_rhfr6urJJA3-vNw&amp;utm_content=137298094&amp;utm_source=hs_email</a>.</li><br /> <li>Time to Scout for SCN Females and Other Associated Plant Diseases. The SCN Coalition.</li><br /> </ol><br /> <p><span style="text-decoration: underline;">&nbsp;</span></p><br /> <p><span style="text-decoration: underline;">Book Chapters</span></p><br /> <ol><br /> <li>Byamukama, E., Yabwalo, D., and Strunk, C. 2022. Foliar Fungicides in Soybean. In: Rozeboom, P. (Edr). 2022 South Dakota Soybeans Pest Management Guide. Publication # P-00010. South Dakota State University, SDSU Extension, Brookings, SD. https://extension.sdstate.edu/sites/default/files/2021-12/P-00010.pdf.&nbsp;</li><br /> <li>Byamukama, E., Yabwalo, D., Rozeboom, P., Wagner, P., and Varenhorst, A. 2022. Soybean Seed Treatments. In: Rozeboom, P. (Edr). 2022 South Dakota Soybeans Pest Management Guide. Publication # P-00010. South Dakota State University, SDSU Extension, Brookings, SD. https://extension.sdstate.edu/sites/default/files/2021-12/P-00010.pdf.</li><br /> <li>Mueller, D., Wise, K., Bradley, C., Sisson, A., Smith, D., Hodgson, E., Tenuta, A., Friskop, A., Conley, S., Faske, T., Sikora, E., Giesler, L., and Chilvers, M. 2021. Fungicide Use in Field Crops. Crop Protection Network. CPN 4008. Doi.org/10.31274/cpn-20210329-0.</li><br /> <li>Sikora, E. J. 2022. Root-knot and reniform nematodes: Double trouble for soybeans in the southern United States. 125-131. In: Integrated Nematode Management: State-of-the-art and visions for the future. Eds. Richard A. Sikora, Johan Desaeger, and Leendert Molendijk. CAB International, UK. 498 pages.</li><br /> <li>Sisson, A.J., D.S. Mueller, S.P. Conley, C.K. Gerber, S.H. Graham, E.W. Hodgson, T.R. Legleiter, P. Price, K.J. Schaefer, E.J. Sikora, T.H. Wilkerson, and K.L. Wise. 2021. Crop Scouting Basics for Corn and Soybean. Crop Protection Network. doi.org/10.31274/cpn-20201214-0.</li><br /> </ol>

Impact Statements

1. DE/MD:Participation in NCERA 137 compliment research and extension efforts in DE to improve understanding of pathogen abundance and distribution in the Mid-Atlantic and how these pressures may relate to other regions to help soybean farmers improve management approaches. Collective efforts of this group inform movement and spread of emerging diseases, document prevalence of fungicide resistance in established pathogens, improve recommendations for optimal production practices, and facilitate information delivery to stakeholders.

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Report Information

Participants

Participants In Attendance: Madeline Henrickson (graduate student), Austin McCoy, Jackie Weiss (USB), Joseph Laforest, Horacio Lopez-Nicora, Mitch Roth, Gary Bergstrom, Albert Tenuta, Heather Kelly, Loren Geisler, Dylan Mangel, Maria Duffeck, John Bakowski, Tyler McFeaters, E T. dalchee, Travis Faske, Raphael Z, John Rupe, Terry Spurlock, Trey Price, Carl Bradley, Darcy Telenko, Boyd P, Kiersten Wise, Tom Allen, Madalyn Shires, Tessie Wilkerson, Rodrigo Onofre, Martin Chilvers, Wade Webster, Daren Mueller, Damon Smith, Marty Draper, Mandy Bish, Febina Mathew Online: Alyssa Koehler, Alejandro Rojas, Amer Fayad, Dean Malvick, Emmanuel Byamukama, Leonor Leandro, Connie Strunk

NIMSS System Participants: Allen, Tom; Kaitlyn, Bissonette; Onofre, Rodrigo; Bradley, Carl; Chilvers, Martin; Dorrance, Anne; Faske, Travis; Jackson-Ziems, Tamra; Kachroo, Aardra; Koehler, Alyssa; Kurle, James; LaForest, Joseph; Little, Chris; Lopez-Nicora, Horacio; Malvick, Dean; Mangel, Dylan; Markell, Sam; Mathew, Febina; Mideros, Santiago; Mueller, Daren; Price, Trey; Qu, Feng; Roth, Mitchell; Smith, Damon; Spurlock, Terry; Telenko, Darcy; Wise, Kiersten; Young, Heather; Zhao, Youfu

Brief Summary of Minutes

The annual NCERA137 meeting was held in Pensacola, FL on February 27, 2023 with Dr. Alyssa Koehler being the chair of the meeting. Meeting highlights included brief introductions of in person and virtual participants, a global-temporal perspective on Phytophthora, Administrator Update, Crop Protection Network (CPN) Update, Online reporting & maps - 2022 recap and setup for 2023, Data Sharing, Exploring mechanisms of effector-triggered susceptibility in the soybean-Sclerotinia pathosystem, Open Discussion on Emerging/Reemerging Diseases, USDA NIFA Update, Soybean Disease Loss Estimates, SCN Coalition Update, updates from the USB, Use of biochar and essential oils to suppress soybean stem/seedling diseases and Tap Root Decline. The meeting closed with a business meeting where the 2024 secretary was elected (Drs. Daren Mueller and Marty Chilvers were voted to share the role) and Dr. Febina Mathew will be the chair.

Accomplishments

<p><strong>Short-term outcomes: </strong>Continued collaborative efforts of the NCERA 137 multi-state working group are advancing recommendations for managing soybean diseases.</p><br /> <p><strong>Outputs: </strong>Within participating states, information was shared through multiple platforms including winter meetings, research publications, extension publications, social media, and other web platforms. Coordinated efforts of this multi-state project enabled data exchange for regional and national recommendations including:</p><br /> <ul><br /> <li>The program "SCN Root Check" generated 48.4M potential impressions in the fourth quarter of 2022.</li><br /> <li>Crop Scouting Basics for Corn and Soybean. Crop Protection Network. CPN 4007. doi.org/10.31274/cpn-20201214-0.</li><br /> <li>2021 Soybean Disease Loss Estimates from the United States and Ontario, Canada Crop Protection Network. CPN 1018-21. doi.org/10.31274/cpn-20220413-0.</li><br /> <li>Crop Protection Network recommendations for Fungicide Efficacy for Control of Soybean Foliar Diseases. CPN 1019. doi.org/10.31274/cpn-20190620-014.</li><br /> <li>Crop Protection Network recommendations for Fungicide Efficacy for Control of Soybean Seedling Diseases. CPN 1020. doi.org/10.31274/cpn-20190620-015</li><br /> </ul><br /> <p>&nbsp;</p>

Publications

<p><span style="text-decoration: underline;">Publications: </span></p><br /> <ol><br /> <li>Collins P.J., Tan R., Wen, Z., Boyse, J.F., Chilvers, M.I., and Wang, D. 2022. Genetic mapping of host resistance to soybean sudden death syndrome Crop Science 62(2): 713-727. <a href="https://doi.org/10.1002/csc2.20689">https://doi.org/10.1002/csc2.20689</a></li><br /> <li>Conrad, A. M., and Telenko, D. E. P. 2023. Efficacy of biocontrol agents <em>Coniothyrium minitans</em> and <em>Bacillus amyloliquefaciens</em> for controlling <em>Sclerotinia sclerotiorum</em> in Indiana soybean. PhytoFrontiers. doi.org/10.1094/PHYTOFR-07-22-0080-R.</li><br /> <li>Da Silva, G.A., Han, G., Mueller, D.S., Helmers, M.J., Kaspar, T.C., and Leandro, L.F.S. 2022. Field studies on the effect of rye cover crop on soybean root disease and productivity. PhytoFrontiers. 2:192-201. https://doi.org/10.1094/PHYTOFR-05-21-0038-R.</li><br /> <li>Elmore, M.G., Groves, C., Hajimorad, M. R., Stewart, T. P., Gaaskill, M. A., Wise, K. A., Sikora, E., Kleczewski, N. M., Smith, D. L., Mueller, D. S., and Whitham, S.A. 2022. Detection and discovery of plant viruses in soybean by metagenomic sequencing. Virology Journal. 19:149. https://doi.org/10.1186/s12985-022-01872-5</li><br /> <li>Faske, T. R., Brown, K. J., and Kelly, J. 2022. Toxicity of tioxazafen to <em>Meloidogyne incognita</em> and <em>Rotylenchulus reniformis</em>. Journal of Nematology 54: e2022-1. https://doi.org/10.2478/jofnem-2022-0007</li><br /> <li>Floyd, C.M. and Malvick, D.K. 2022. <em>Diaporthe</em> species associated with symptomatic and asymptomatic infection of soybean stems in Minnesota: identity, virulence and growth. Canadian Journal of Plant Pathology 44:858-873.</li><br /> <li>Garcia-Aroca, T., Price, P., Solorzano, J. E., Galo, D., Sheffield, S. B., and Doyle, V. P. &nbsp; Secondary metabolites produced by <em>Xylaria necrophora </em>are responsible for foliar symptoms associated with taproot decline of soybean.&nbsp; Plant Health Progress 23:388-398.&nbsp; https://doi.org/10.1094/PHP-03-22-0021-RS.</li><br /> <li>Hebb, L. M., Bradley, C. A., Mideros, S. X., Telenko, D. E. P., Wise, K. A., and Dorrance, A. E. 2022. Pathotype complexity and genetic characterization of <em>Phytophthora sojae</em> populations in Ohio, Indiana, Illinois and Kentucky. Phytopathology 112:663-681.</li><br /> <li>Kandel, Y. R., Lawson, M. N., Brown, M. T., Chilvers, M. I., Kleczewski, N. M., Telenko, D. E. P., Tenuta, A. U., Smith, D. L., and Mueller, D. S. 2022. Field and greenhouse assessment of seed treatment fungicides for management of root rot and foliar symptoms of sudden death syndrome and grain yield response of soybean. Plant Disease <a href="https://doi.org/10.1094/PDIS-03-22-0527-RE">https://doi.org/10.1094/PDIS-03-22-0527-RE</a></li><br /> <li>Kelly, J., Bateman, N. R., Faske, T. R. 2022. Reproduction of <em>Meloidogyne incognita</em> on hybrid rice and survey of plant-parasitic nematodes in furrow-irrigated rice in Arkansas. Nematropica 52: 94-102.</li><br /> <li>Kessler A.C. and Koehler A.M. 2022. Survey of plant pathogenic nematodes of soybean in Delaware and Maryland 2019-2021. Plant Health Progress. In press. https://doi.org/10.1094/PHP-07-22-0064-S.</li><br /> <li>Kleczewski, N., Kness, A., and Koehler, A.M. 2022. Impacts of row spacing and fungicide timing on foliar disease, green stem and yield in double cropped soybeans grown in the Chesapeake Bay region of the United States. Plant Health Progress. PHP-10. https://doi.org/ 10.1094/PHP-10-21-0130-BR.</li><br /> <li>McCoy, A.G., Byrne, A.M., Jacobs J. L., Anderson, G., Kurle, J.E., Telenko, D.E.P., and Chilvers, M.I. 2022. Oomicide treated soybean seeds reduce early season stand loss to <em>Phytophthora sojae</em>. Crop Protection 157: 105984 https://doi.org/10.1016/j.cropro.2022.105984</li><br /> <li>McCoy, A.M., Noel, Z.A., Jacobs, J.L., Clouse, K.M., and Chilvers, M.I. 2022. <em>Phytophthora sojae</em> pathotype distribution and fungicide sensitivity in Michigan. Plant Disease 106:425-431 doi.org/10.1094/PDIS-03-21-0443-RE</li><br /> <li>Neves, D. L., Wang, A., Weems, J. D., Kelly, H. M., Mueller, D. S., Farman, M., and Bradley, C. A. 2022. Identification of <em>Septoria glycines</em> isolates from soybean with resistance to quinone outside inhibitor fungicides. Plant Disease 106:2631-2637. https://doi.org/10.1094/PDIS-08-21-1836-RE.</li><br /> <li>Neves, D.L., Webster, R.W., Smith, D.L., and Bradley, C.A. 2022. The G143A mutation in the cytochrome b gene is associated with quionone outside inhibitor fungicide resistance in <em>Cercospora sojina</em> from soybean fields in Wisconsin. Plant Health Progress. https://doi.org/10.1094/PHP-09-21-0115-BR.</li><br /> <li>Neves, D. L., Berghuis, B. G., Halvorson, J. M., Hansen, B. C., Markell, S. G., and Bradley, C. A. 2022. First detection of frogeye leaf spot in soybean fields in North Dakota and the 143A mutation in the cytochrome b gene of <em>Cercospora sojina</em>. Plant Health Progress https://doi.org/10.1094/PHP-10-21-0132-BR. Article was the featured research article in Plant Health Progress on July 25, 2022.</li><br /> <li>Noel, Z.A., Longley, R., Benucci, G.M.N., Trail, F., Chilvers, M., and Bonito, G. 2022. Non-target impacts of fungicide disturbance on phyllosphere yeasts in conventional and no-till management. ISME Communications 2: 19 <a href="https://doi.org/10.1038/s43705-022-00103-w">https://doi.org/10.1038/s43705-022-00103-w</a></li><br /> <li>Olarte, R.A., Hall, R., Tabima, J.F., Malvick, D.K., and Bushley. K. 2022. Genetic diversity and aggressiveness of <em>Fusarium virguliforme</em> isolates across the Midwestern United States. Phytopathology 112:1273-1283.</li><br /> <li>Pieros-Guerrero, N., Neves, D. L., Bradley, C. A., and Telenko, D. E. P. 2023. Determining the distribution of QoI fungicide- resistant <em>Cercospora sojina</em> on soybean from Indiana. Plant Diseaseease. doi.org/10.1094/PDIS-08-22-1744-SR.</li><br /> <li>Pimentel, M. F., Arnao, E., Warner, A. J., Rocha, L. F., Subedi, A., Elsharif, N., Chilvers, M. I., Matthiesen, R., Robertson, A. E., Bradley, C. A., Neves, D. L., Pedersen, D. K., Reuter-Carlson, U., Lacey, J. V., Bond, J. P., and Fakhoury, A. M. 2022. Reduction of Pythium damping-off in soybean by biocontrol seed treatment. Plant Disease 106:2403-2414.</li><br /> <li>Pimentel, M.F., Srour, A.Y., Warner, A.J., Bond, J.P., Bradley, C.A., J.,&nbsp;&nbsp; Chilvers, M. I., Rojas, J.A., Jacobs, J. L., Little, C.L., Robertson, A.E., Giesler, L.J., Malvick, D.K., Wise. K., Tenuta, A., and Fakhoury, A.M.&nbsp; 2022.&nbsp; Ecology and diversity of culturable fungal species associated with soybean seedling diseases in the Midwestern United States.&nbsp; J. Appl. Microbiol. 132:3797-3811.</li><br /> <li>Rodriguez-Herrera, K. D., V. P. Doyle, P. Price, G. B. Padgett, and S. Thomas-Sharma. &nbsp; Aerial blight of soybean caused by <em>Rhizoctonia solani</em> AG1-IA:&nbsp; A diagnostic guide.&nbsp; Plant Health Prog.&nbsp; In press.</li><br /> <li>Sang, H., Chang, H.-X., Choi, S., Son, D., Lee, G., and Chilvers, M.I. 2021. Genome-wide transcriptional response of the causal soybean sudden death syndrome pathogen <em>Fusarium virguliforme</em> to a succinate dehydrogenase inhibitor fluopyram. Pest Management Sci. 78:530-540 https://doi.org/10.1002/ps.6657</li><br /> <li>Traverso E. and Koehler A.M. 2022. Evaluation of foliar fungicides for management of soybean diseases in Delaware, 2021. Plant Disease Management Reports. 16:CF133.</li><br /> <li>Viggers, J., Kandel, Y.R., and Mueller, D.S. 202X. Impact of fungicide application method on soybean canopy coverage, disease, and yield. Plant Health Progress 23: 409-414. https://doi.org/10.1094/PHP-03-22-0024-RS</li><br /> <li>Webster, R.W., Roth, M.G., Mueller, B.D., Mueller, D.S., Chilvers, M.I., Willbur, J.F., Mourtzinis, S., Conley, S.P., and Smith, D.L. 2022. Integration of row spacing, seeding rates, and fungicide applications for control of Sclerotinia stem rot in <em>Glycine max</em>. Plant Disease 106:1183-1191. https://doi.org/10.1094/PDIS-09-21-1931-RE.</li><br /> <li>Westrick, N., Park, S.C., Keller, N., Smith, D.L., and Kabbage, M. 2022. A broadly conserved fungal alcohol oxidase (AOX) facilitates fungal invasion of plants. Molecular Plant Pathology. https://doi.org/10.1111/mpp.13274.</li><br /> <li>Webster, R.W., Roth, M.G., Mueller, B.D., Mueller, D.S., Chilvers, M.I., Willbur, J.F., Moutzinis, S., Conley, S.P., and Smith, D.L. 2022. Integration of row spacing, seeding rates, and fungicide application for control of Sclerotinia stem rot in <em>Glycine max</em>. Plant Disease <a href="https://doi.org/10.1094/PDIS-09-21-1931-RE">https://doi.org/10.1094/PDIS-09-21-1931-RE</a>.</li><br /> </ol><br /> <p><span style="text-decoration: underline;">Abstracts/Proceedings:</span></p><br /> <ol><br /> <li>Allen, T. W., P. Price, et al. &nbsp; Southern United States soybean disease loss estimates for 2021.&nbsp; Proc. So. Soybean Dis. Workers.&nbsp; Pensacola, FL.&nbsp; 1-11.</li><br /> <li>Barizon, J., Bissonnette, K.M., Adee, E., Ames, K.A., Becker, T., Biggs, M., Bradley, C.A., Brown, M., Byamukama, E., Chilvers, M.I., Faske, T.R., Harbach, C.J., Jackson-Ziems, T.A., Kandel, Y.R., Kleczewski, N.M., Koehler, A.M., Markell, S.G., Mueller, D.S., Sjarpe, D.A., Smith, D.L., Telenko, D.E.P., and Tenuta, A.U. 2022. Nematode-protectant Seed Treatment Effects on Soybean Cyst Nematode Populations in the Field and in the Greenhouse: A Multi-state Study. North Central APS Meeting. Lincoln, NE.</li><br /> <li>Barro, J. P. Del Ponte, E. M., Allen, T, Bond, J. P., Faske, T. R., Hollier, C. A., Kandel, Y. R., Mueller, D. S., Kelly, H. M., Kleczewski, N. M., Price, P., Sikora, E. J., and Bradley, C. A. 2022. Decline in fungicide efficacy for managing frogeye leaf spot on soybean in the United States: a meta-analysis. Phytopathology 112: S3.15.</li><br /> <li>Barro, J., Del Ponte, E. M., and Bradley, C. A. 2022. Fungicide resistance of <em>Phakopsora pachyrhizi</em> in Brazil: an overview. Proceedings of the 10th International IPM Symposium, page 35. https://ipmsymposium.org/2022/Documents/IPM2022FullProgram.pdf.</li><br /> <li>Barro J. P., Del Ponte E. M., Kelly H. M., Sikora E. J., and Bradley C. A. 2022. Quantifying the effects of fungicides, cultivars and row spacing on foliar diseases and soybean yield in the southern U.S. Proceedings of the 2022 Southern Soybean Disease Workers Meeting, Southern Soybean Disease Workers, Pensacola, FL, United States.</li><br /> <li>Bissonnette K. M., Barizon J., Adee E., Ames K. A., Becker T., Biggs M., Bradley C. A., Brown M., Byamukama E., Chilvers M. I., Faske T. R., Harbach C. J., Jackson-Ziems T. A., Kandel Y. R., Kleczewski N. M., Koehler A. M., Markell S. G., Mueller D. S., Sjarpe D. A., Smith D. L., Telenko D. E.P., and Tenuta A. U. 2022. Applied management of soybean cyst nematode with nematode-protectant seed treatments: a multi-state study. Proceedings of the 2022 National Soybean Nematode Conference, American Phytopathological Society, Savannah, GA, United States.</li><br /> <li>Bradley, C. A., and Mueller, D. S. 2022. Detection and management of fungicide-resistant plant pathogens of soybean. Proceedings of the 10th International IPM Symposium, page 34. https://ipmsymposium.org/2022/Documents/IPM2022FullProgram.pdf.</li><br /> <li>Bradley, C. A., and Neves, D. 2022. Current status of fungicide-resistant pathogens that cause foliar diseases of soybean in the U.S. Proceedings of the 10th International IPM Symposium, page 34. https://ipmsymposium.org/2022/Documents/IPM2022FullProgram.pdf.</li><br /> <li>Butler, A., Emerson, M., and Faske, T. R. 2022. Reproduction of the southern root-knot nematode on resistant soybean cultivars at two inoculation rates in a greenhouse, 2020. Plant Disease Management Reports (vol. 16, pp. N025).</li><br /> <li>Emerson, M., Faske, T. R., and Vangilder, A. M. 2022. Field performance of eleven runner-type peanut cultivars in 2021 in Mississippi County, Arkansas (pp. 35-38). Arkansas Agricultural Experiment Station Research Series 686.</li><br /> <li>Emerson, M., and Faske, T. R. 2022. Evaluation of premium foliar fungicides for management of frogeye leaf spot on soybean in Arkansas, 2021 Plant Disease Management Reports (vol. 16, pp. CF108).</li><br /> <li>Galagedara, N. N., Doyle, V. P., Price, P., Robertson, C. L., Pavur, M., and Thomas-Sharma, S. &nbsp; Elucidating the seasonal dynamics of Cercospora leaf blight on soybean for improved disease management.&nbsp; Proc. Southern Soybean Dis. Workers.&nbsp; Pensacola, FL.&nbsp; 21.</li><br /> <li>Hamilton, R., Mccoy, A., Jacobs, J. L., Bennett, S., Kelly, H. M., Bradley, C. A., and Chilvers, M. 2022. Monitoring fluopyram sensitivity in <em>Fusarium virguliforme</em>. Phytopathology 112: S3.151.</li><br /> <li>Kessler A.C. and Koehler A.M. 2022. Species diversity and aggressiveness of <em>Diaporthe</em> in Delaware and Maryland Soybean Production. Southern Soybean Disease Workers Conference, Pensacola, Fl.</li><br /> <li>Mccoy, A., Bradley, C. A., Cerritos-Garcia, D., Castelli Garnica, V., Giesler, L. J., Grijalba, P. E., Guillin, E., Malvick, D. K., Mattiesen, R. L., Mideros Mora, S. X., Noel, Z. A., Robertson, A. E., Roth, M., Schmidt, C., Smith, D. L., Sparks, A. H., Telenko, D. E. P., and Chilvers, M. 2022. Phytophthora stem and root rot of soybean: a global-temporal perspective on resistance-gene efficacy. Phytopathology 112: S3.50.</li><br /> <li>Mehl K. M., Bradley C. A. 2022. Surveys for plant-parasitic nematodes in Kentucky soybean fields. Proceedings of the 2022 National Soybean Nematode Conference, American Phytopathological Society, Savannah, GA, United States.</li><br /> <li>Neves, D., and Bradley, C. A. 2022. Presence of the G143A mutation in the cytochrome b gene in <em>Corynespora cassiicola</em> isolates collected from Kentucky soybean fields. Phytopathology 112:S3.165.</li><br /> <li>Neves D. L., and Bradley C. A. 2022. Sensitivity of <em>Cercospora sojina</em> to demethylation inhibitor and methyl benzimidazole carbamate fungicides. Proceedings of the 2022 Southern Soybean Disease Workers Meeting, Southern Soybean Disease Workers, Pensacola, FL, United States.</li><br /> <li>Pate, S., and H. M. Kelly. &nbsp; Tennessee soybean production and soil microbiota are affected by cover crops, burndown timings, and seed treatments.&nbsp; Phytopathology, Vol. 112 (8), 5-5.</li><br /> <li>Rodriguez, K., Thomas-Sharma, S., Doyle, V., and Price, P. &nbsp; Development of a greenhouse protocol to screen soybean for aerial blight resistance.&nbsp; Phytopathology.&nbsp; 112: S2.10.</li><br /> <li>Rodriguez-Herrera, K., Doyle, V. P., Price, P., and Thomas-Sharma, S. &nbsp; Evaluation of genetic diversity of <em>Rhizoctonia solani</em> AG1-1A to identify resistance in soybean.&nbsp; Proc. Southern Soybean Dis. Workers.&nbsp; 22.</li><br /> <li>Sela, S., Mueller, D. S., Kandel, Y. R., Tenuta, A. U., Telenko, D. E. P., Mathew, F. M., Bradley, C. A., Wise, K. A., Chilvers, M., and Smith, D. L. 2022. Data standardization can boost collaborative efforts in plant pathology research: current state of the art with application to SDS prediction modeling. Phytopathology 112: S3.1.</li><br /> <li>Shrestha, B., da Silva, E., Doyle, V. P., Allen, T., Chen, P., Buckley, B., Padgett, G. B., Zhou, X. G., Kelly, H. M., Sikora, E., Spurlock, T., Rupe, J. C., Koebernick, Bradley, C. A., and Price, P. P. 2022. Molecular assay identifying mutation associated with QoI-fungicide resistance in <em>Cercospora</em> associated with Cercospora leaf blight of soybean. Proceedings of the 10th International IPM Symposium, page 34. https://ipmsymposium.org/2022/Documents/IPM2022FullProgram.pdf.</li><br /> <li>Sureshbabu, B. M., Subramanian, S., Braun, N., Kontz, B., and Mathew, F. M. 2022. Effect of foliar fungicides on pathogenic fungal endophytes in soybean (<em>Glycine max</em>). American Phytopathological Society Annual Meeting, Pittsburgh, PA. August 2-6, 2022.</li><br /> <li>Sureshbabu, B., Kontz, B., Webster, R. W., Singh, A., Smith, D., Wang, D., and Mathew, F. Evaluation of accessions for resistance to <em>Diaporthe caulivora </em>causing stem canker in soybean (<em>Glycine max </em>L.). SOY2022 (Virtual). August 22-23, 2022.</li><br /> <li>Sureshbabu, B. M., Mohan, K., Allen, T., Bergstrom, G., Bissonnette, K., Bradley, C., Buck, J., Chilvers, M., Kelly, H., Kleczewski, N., Koehler, A., Malvick, D., Markell, S., Mueller, D., Smith, D., Subramanian, S., Markell, S., Telenko, D., Wise, K., and Mathew, F. M. 2022. Sensitivity of <em>Diaporthe aspalathi</em>, <em> caulivora</em> and <em>D. longicolla</em> causing soybean disease to azoxystrobin fungicide. American Phytopathological Society North Central Division Meeting, Lincoln, NE. June 21-23, 2022.</li><br /> <li>Sureshbabu, B. M., Braun, N., Kontz, B., Subramanian, S., and Mathew, F. 2021. Evaluating the effect of fungicide on endophytes in soybean (<em>Glycine max</em>). The Bean Improvement Cooperative (BIC) and the North American Pulse Improvement Association (NAPIA) Annual Meeting (Virtual). November 2-4, 2021.</li><br /> </ol><br /> <p><span style="text-decoration: underline;">Extension and Outreach:</span></p><br /> <ol><br /> <li>Bish M (2022) Soybean Cyst Nematode: Out of Sight, Out of Mind. Mizzou Crop &amp; Pest News. University of Missouri.</li><br /> <li>Bissonnette K, Bish M, and Carraher M (2022) Top 3 emerging disease issues going into 2022. Mizzou Crop &amp; Pest News. University of Missouri.</li><br /> <li>Bradley, C. A., Allen, T., Mueller, D., Tenuta, A., Mehl, K., and Sisson, A. 2022. Soybean disease loss estimates from the United States and Ontario, Canada 2021. CPN 1018-21. Crop Protection Network. doi.org/10.31274/cpn-20220413-0.</li><br /> <li>Bradley, C. 2022. Management of Soybean Cyst Nematode Starts with Soil Sampling this Fall. October 18, 2022. Kentucky Pest News. https://kentuckypestnews.wordpress.com/2022/10/18/management-of-soybean-cyst-nematode-starts-with-soil-sampling-this-fall/</li><br /> <li>Bradley, C. 2022. Interveinal Chlorosis Symptoms on Soybean Leaves. August 16, 2022. Kentucky Pest News. https://kentuckypestnews.wordpress.com/2022/08/16/interveinal-chlorosis-symptoms-on-soybean-leaves/</li><br /> <li>Bradley, C. 2022. Foliar Fungicide Considerations for Soybean. July 19, 2022. Kentucky Pest News. https://kentuckypestnews.wordpress.com/2022/07/19/foliar-fungicide-considerations-for-soybean-4/</li><br /> <li>Bradley, C., Allen, T., Tenuta, A., Mehl, K., and Sisson, A. 2022. Soybean Disease Management and Soybean Disease Loss Estimates from the United States and Ontario, Canada 2021. Crop Protection Network. CPN 1018-21. doi.org/10.31274/cpn-20220413-0.</li><br /> <li>Doyle, V. P., Garcia-Aroca, T., Price, T., and Solorzano, J. E. &nbsp; Building a framework for managing an emerging fungal disease of soybean.&nbsp; LA Agric.&nbsp; Winter 2022.&nbsp; 16-18.</li><br /> <li>Faske, T. R., and Spurlock, T. (Eds.), 2022. Arkansas Plant Disease Control Products Guide (MP 154). Little Rock, AR: University of Arkansas, Division of Agriculture, Cooperative Extension Service.</li><br /> <li>Emerson, M., Baker, B., Faske, T. R. 2022. Field Performance of Thirty-Six Soybean Varieties Marketed as Resistant to Southern Root-knot Nematode, 2022. UADA-CES"</li><br /> <li>Chilvers, M., Check, J., McCoy, A., Staton, M. Jun 7, 2022. Will white mold be a problem in 2022? Soybean Weekly https://www.michigansoybean.org/blog1/will-white-mold-be-a-problem-in-2022</li><br /> <li>Chilvers, M., and McCoy, A. 2022. "Update on Phytophthora root rot management, Michigan Soybean Performance trial report.</li><br /> <li>Chilvers, M., and McCoy, A. 2022. Scouting for Phytophthora and root rot diseases. Michigan Soybean News., June 2022</li><br /> <li>Chowdhury, I., A., Yan, G., Halvorson, J., Thapa, A., Halvorson, M. and Markell, S. 2022. Soybean Cyst Nematode (SCN). NDSU Extension Publication PP1732.</li><br /> <li>Conrad, A. and Telenko, D. E. P. 2022. Diseases of soybean: White Mold. Purdue Extension. BP-43-W (update).</li><br /> <li>Henrickson M. and Koehler A.M. 2022. Soybean Vein Necrosis Virus. University of Delaware Factsheet.</li><br /> <li>Henrickson M. and Koehler A.M. 2022. Cercospora Leaf Blight and Purple Seed Stain. University of Delaware Factsheet.</li><br /> <li>Henrickson M. and Koehler A.M. 2022. Soybean Cyst Nematode. University of Delaware Factsheet.</li><br /> <li>Henrickson M. and Koehler A.M. 2022. Septoria Brown Spot in Soybean. University of Delaware Factsheet.</li><br /> <li>Henrickson M. and Koehler A.M. 2022. Frogeye Leaf Spot. University of Delaware Factsheet.</li><br /> <li>Kessler A. and Koehler A.M. 2022. Nematode Soil Sampling in Soybeans. University of Delaware Factsheet.</li><br /> <li>Kessler A. and Koehler A.M. 2022. A survey of plant parasitic nematodes of soybeans in DE and MD 2019-2021. University of Delaware Factsheet.</li><br /> <li>Kessler A. and Koehler A.M. 2022. Seed treatments for management of soybean cyst nematode. University of Delaware Factsheet.</li><br /> <li>Koehler A.M. Soybean seeding diseases and fungicide efficacy. Delaware Weekly Crop Update. 5.13.22</li><br /> <li>Koehler A.M. Scouting for Soybean Cyst Nematode. Delaware Weekly Crop Update. 6.17.22</li><br /> <li>Koehler A.M. Root knot nematode in field crops and vegetables. Delaware Weekly Crop Update. 7.8.22</li><br /> <li>Koehler A.M. Soybean Updates. Delaware Weekly Crop Update. 7.22.22</li><br /> <li>Koehler A.M. Diseases in Soybean. Delaware Weekly Crop Update. 9.2.22</li><br /> <li>Koehler A.M. Soil Sampling for nematodes in soybean. Delaware Weekly Crop Update. 9.8.22</li><br /> <li>Koehler A.M. 2022. Sorting out Soybean Diseases with Similar Foliar Symptoms. University of Delaware Factsheet.</li><br /> <li>Lux, L., Halvorson, J., Hanson, B., Friskop, A., and Markell, S. Frogeye leaf spot of soybean. North Dakota Extension Publication PPXXXX (in press).</li><br /> <li>Markell, S., Malvick, D., Mathew, F., Webster, R. and Yan, G. 2023. Disease management and identification. Pp 104-129 in: Kandel, H. and Endres, G. 2023. North Dakota Soybean Production Field Guide. North Dakota Extension Publication A1172. 176Pp.</li><br /> <li>Mathew, F., Strunk, C., and Shires, M. 2022. Crop Hour: Soybean Cyst Nematode. September 20, 2022 (Virtual).</li><br /> <li>Mathew, F. 2022. Isolate-genotype interaction for resistance to <em>Diaporthe </em> 2022 Virtual Soybean Breeders Workshop. February 14-16, 2022.</li><br /> <li>Mathew, F. 2022. Evaluating the effect of foliar fungicides on fungal endophytes in soybean (<em>Glycine max</em>). Guest Seminar, Fusarium Working Group, Iowa State University, Ames, IA. February 8, 2022.</li><br /> <li>Mueller, B. and Smith, D.L. 2022. Evaluation of in-furrow and foliar fungicide treatments for control of sudden death syndrome of soybean in Brooklyn, Wisconsin, 2021. Plant Disease Management Reports 16:CF031.</li><br /> <li>Mueller, B., Smith, D.L., and Webster, W. 2022. Evaluation of foliar fungicide treatments for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2021. Plant Disease Management Reports 16:CF032.</li><br /> <li>Mueller, B., Smith, D.L., and Webster, W. 2022. Evaluation of an herbicide and fungicides for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2021. Plant Disease Management Reports 16:CF033.</li><br /> <li>Mueller, B. and Smith, D.L. 2022. Evaluation of foliar fungicide treatments for control of Sclerotinia stem rot of soybean in Arlington, Wisconsin, 2021. Plant Disease Management Reports 16:CF034.</li><br /> <li>NCERA-137. 2022. Fungicide Efficacy for Control of Soybean Foliar Diseases. CPN 1019. doi.org/10.31274/cpn-20190620-014.</li><br /> <li>NCERA-137. 2022. Fungicide Efficacy for Control of Soybean Seedling Diseases. CPN 1020. doi.org/10.31274/cpn-20190620-015</li><br /> <li>Padgett, B., P. Price, et al. 2019-2022.&nbsp; Louisiana plant disease management guide cotton, field crop seed treatment, and soybean sections.&nbsp; Online:&nbsp; lsuagcenter.com."</li><br /> <li>Price, P., Moseley, D., Padgett, G. B., and Chen, Z. &nbsp; Status and latest research on managing soybean rust in Louisiana.&nbsp; LA Agric.&nbsp; Winter 2022.&nbsp; 14-15.</li><br /> <li>Staton, M., and Chilvers, M. 2022. Prophylactic fungicides in soybean production. Michigan Soybean News</li><br /> <li>Staton, M., and Chilvers, M. 2022. Fungicide use for white mold management in soybeans. Michigan Soybean News</li><br /> <li>Staton, M., Chilvers, M., and Singh, M. 2022. Are soybean seed treatments profitable? Michigan Soybean News. Spring 2022, Volume 14 Issue 2.</li><br /> <li>Shim, S. and Telenko, D. E. P. 2023. Applied Research in Field Crop Pathology for Indiana 2022. Purdue Extension."</li><br /> <li>Smith, E., M. Zuefle, X. Wang, K. Wise, J. Degni, A. Gabriel, M. Hunter, J. Miller, K. O&rsquo;Neil, M. Stanyard, and G. Bergstrom. 2022. Soybean cyst nematode in soybeans and dry beans: new research and renewed sampling efforts in 2022. What&rsquo;s Cropping Up Volume 32 No. 4: <a href="https://blogs.cornell.edu/whatscroppingup/2022/09/09/soybean-cyst-nematode-in-soybeans-and-dry-beans-new-research-and-renewed-sampling-efforts-in-2022/">https://blogs.cornell.edu/whatscroppingup/2022/09/09/soybean-cyst-nematode-in-soybeans-and-dry-beans-new-research-and-renewed-sampling-efforts-in-2022/</a></li><br /> <li>Smith, S. A., R. G. Bowling, D. Bilderback, L. E. Steckel, J. Via, C. D. Manning, S. D. Stewart, J. D. McClure, T. B. Raper, and H. M. Kelly. &nbsp; Field Crop Budgets for 2022 (revision).&nbsp; University of Tennessee Extension Department of Agricultural and Resource Economics Publication, D 33.</li><br /> <li>Smith, D., Sisson, A., Chilvers, M., Kabbage, M., McCaghey, M., and Willbur, J. 2022. White Mold of Soybean. Crop Protection Network. CPN 1026. doi.org/10.31274/cpn-20210607-0.</li><br /> <li>Sykes, V. R., R. H. Blair, H. M. Kelly, L. Schumacher, F. Palacios, S. B. Keadle, A. C. Thelin, and V. R. Pantalone. &nbsp; Soybean Variety Tests in Tennessee 2022.&nbsp; UT Extension, PB 1889.</li><br /> <li>Traverso E. and Koehler A.M. 2022. Root-Knot Nematode in Soybean. University of Delaware Factsheet.</li><br /> <li>Webster, R. W., Roth, M. G., Mueller, B., Mueller, D. S., Chilvers, M. I., Telenko, D. E. P., Willbur, J. F., Mourtzinis, S., Conley, S., and Smith, D. 2022. Modern Integrated Management Practices for Controlling White Mold in Soybean. Crop Protection Network. CPN 5009. doi.org/10.31274/cpn-20220314-1.</li><br /> <li>Zaworski, E. (Host) and Faske, T. (Interviewee). Vampire Worms! How Root Knot Nematodes Drain the Life from Soybeans. S1:E7 (Podcast). January 13, 2022. In I See Dead Plants. Crop Protection Network. https://sites.libsyn.com/416264/s1e7-vampire-worms-how-root-knot-nematodes-drain-the-life-from-soybeans</li><br /> <li>Zaworski, E. (Host) and Sikora, E. (Interviewee). Rust Can&rsquo;t Get Enough: Soybean Rust. S1:E10 (Podcast). March 24, 2022. In I See Dead Plants. Crop Protection Network. https://sites.libsyn.com/416264/s1e10-rust-cant-get-enough-soybean-rust</li><br /> <li>Zaworski, E. (Host) and Wise, K. (Interviewee). A Guide to Killing Fungicide. S1:E12 (Podcast). April 20, 2022. In I See Dead Plants. Crop Protection Network. https://sites.libsyn.com/416264/s1e12-a-guide-to-killing-fungi-fungicide-efficacy-trials</li><br /> <li>Zaworski, E. (Host) and Webster, W. (Interviewee). How did these Rat Turds get in my Soybean Stems?! Soybean White Mold. S1:E13 (Podcast). May 4, 2022. In I See Dead Plants. Crop Protection Network. https://sites.libsyn.com/416264/s1e13-how-did-these-rat-turds-get-in-my-soybean-stems-soybean-white-mold</li><br /> <li>Zaworski, E. (Host) and Whitham, S. (Interviewee). Refried Genes: Using CRISPR/Cas9 Systems to Edit the Genome of Soybeans. S1:E14 (Podcast). May 19, 2022. In I See Dead Plants. Crop Protection Network. https://sites.libsyn.com/416264/s1e14-refried-genes-using-crisprcas9-systems-to-edit-the-genome-of-soybeans</li><br /> <li>Zaworski, E. (Host) and Chilvers, M. (Interviewee). Drop Dead Soybeans: Trying to Predict Soybean Sudden Death Syndrome. S1:E16 (Podcast). Jun 15, 2022. In I See Dead Plants. Crop Protection Network. https://sites.libsyn.com/416264/s1e16-drop-dead-soybeans-trying-to-predict-soybean-sudden-death-syndrome</li><br /> <li>Zaworski, E. (Host) and Bradley, C. (Interviewee). Fungi Fight Back! Fungicide Resistance in Crop Diseases. S1:E18 (Podcast). August 3, 2022. In I See Dead Plants. Crop Protection Network. https://sites.libsyn.com/416264/s1e18-fungi-fight-back-fungicide-resistance-in-crop-diseases</li><br /> <li>Zaworski, E. (Host) and Leandro, L. (Interviewee). Mixing it Up: How Extended Crop Rotation Effects Soybean Sudden Death Syndrome. S1:E19 (Podcast). August 25, 2022. In I See Dead Plants. Crop Protection Network. https://sites.libsyn.com/416264/s1e19-mixing-it-up-how-extended-crop-rotation-effects-soybean-sudden-death-syndrome</li><br /> <li>Zaworski, E. (Host) and Mathew, F. (Interviewee). What Terrors Lurk Below the Canopy: Soybean Stem Canker. S2:E2 (Podcast). December 14, 2022. In I See Dead Plants. Crop Protection Network. https://sites.libsyn.com/416264/s2e2-what-terrors-lurk-below-the-canopy-soybean-stem-canker</li><br /> </ol><br /> <p><span style="text-decoration: underline;">Book Chapters</span></p><br /> <ol><br /> <li>Sisson, A.J., Mueller, D.S., Conley, S.P., Gerber, C.K., Graham, S.H., Hodgson, E.W., Leglieter, T.R., Price, P.P., Schaefer, K.J., Sikora, E.J., Wilkerson, T.H., and Wise, K.L. 2021. Crop Scouting Basics for Corn and Soybean. Crop Protection Network. CPN 4007. Doi.org/10.31274/cpn-20201214-0.</li><br /> <li>Smith, D., Sisson, A., Chilvers, M., Kabbage, M., McCaghey, M., and Willbur, J. 2022. White Mold of Soybean. Crop Protection Network. CPN1026. doi.org/10.31274/cpn-20210607-0.</li><br /> </ol><br /> <p>&nbsp;</p>

Impact Statements

1. Impacts: Diseases in soybean can greatly impact yield potential. To facilitate data driven management recommendations, NCERA 137 participants performed research to address regionally significant diseases, conducted fungicide efficacy trials, and supported disease forecasting efforts. Research results were shared through extension programming (field days, grower meetings, publications, newsletter, blogs, YouTube videos, radio. and social media) to maximize effectiveness of disease management strategies and improve grower productivity and profitability.

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Participants

Participants in Attendance: Chair Febina Mathew - North Dakota State University, Co-co-chairs Marty Chilvers - Michigan State University and Daren Mueller - Iowa State University, Jason Bond and Ahmed Fakhoury - Southern Illinois University, Wade Webster - North Dakota State University, Carl Bradley – University of Kentucky, Sara Thomas Sharma – Louisiana State University, John Rupe - University of Arkansas, Albert Tenuta – OMAFRA, Ed Sikora – Auburn University, Doug Jardine – Kansas State University (emeritus), Chris Little – Kansas State University, Dylan Mangel – University of Nebraska Lincoln, LeAnn Lux – North Carolina State University, Jackie Weiss – USB, Heather Kelly – University of Tennessee, Trevor Faske – University of Arkansas, Alejandro Rojas – University of Arkansas, Rafael Zaia – University of Arkansas, Terry Spurlock – University of Arkansas, Boyd Padget – Louisiana State University, Trey Price – Louisiana State University, Tessie Wilkerson – Mississippi State University, Mandy Bish – University of Missouri, Madalyn Shires – South Dakota State University, Alison Robertson – Iowa State University, Martin Chilvers – Michigan State University, Kiersten Wise – University of Kentucky, Daren Mueller – Iowa State University, Damon Smith – University of Wisconsin-Madison, Darcy Telenko – Purdue University, Alyssa Koehler Betts – University of Delaware, Boris Camiletti – University of Illinois, Maira Duffeck – Oklahoma State University, Horacio Lopez-Nicora, the Ohio State University, Danilo Neves – University of Kentucky, Will Barlow - University of Kentucky, Kelsey Mehl – University of Kentucky, Febina Mathew – North Dakota State University, Joe LaForest – University of Georgia, Dean Malvick – University of Minnesota, Miranda DePriest – Pennsylvania State University, Jose Gonzalez – Iowa State University. Virtual attendees: Amer Fayad - NIFA, Emmanuel Byamukama - NIFA, Gary Bergstrom – University of Cornell, Leonor Leandro – Iowa State University, Shawna Loper – Bayer, Terri Hughes – Bayer, Jagdeep Kaur - Bayer

Brief Summary of Minutes

The annual NCERA137 meeting was held in Pensacola, FL on March 5, 2024, with Febina Mathew being the chair of the meeting. Meeting highlights include a brief introduction to in-person and virtual attendees. Congratulations to the NCERA137: Soybean Diseases group winner of the 2023 North Central regional award and nominee to the Experiment Station Section National Excellence in Multistate Research Award.  Administrator update, United Soybean Board update, USDA NIFA update. Disease mapping and data sharing discussion, soybean disease loss estimates, SCN coalition update, open crop manager presentation. Crop Protection Network update, Better Together discussion, root-knot nematode update, research update on modelling seed treatments, white mold update, multiregional NCSRP and USB project update, Fusarium root rot update, discussion on electrical conductivity and root knot nematode interactions, red crown rot discussion, uniform foliar trial discussion. Business meeting with Tessie Wilkerson being elected the incoming co-chair.

Accomplishments

<p>Short-term outcomes: Continued collaborative efforts of the NCERA 137 multi-state working group are advancing recommendations for managing soybean diseases.</p><br /> <p>Outputs: Within participating states, information was shared through multiple platforms including winter meetings, research publications, extension publications, social media, and other web platforms. Coordinated efforts of this multi-state project enabled data exchange for regional and national recommendations including:</p><br /> <ul><br /> <li>Soybean Disease Loss Estimates from the United States and Ontario, Canada &ndash; 2022. Crop Protection Network. CPN 1018-22. doi.org/10.31274/cpn-20230421-1</li><br /> <li>Crop Protection Network recommendations for Fungicide Efficacy for Control of Soybean Foliar Diseases. CPN 1019. doi.org/10.31274/cpn-20190620-014.</li><br /> <li>Crop Protection Network recommendations for Fungicide Efficacy for Control of Soybean Seedling Diseases. CPN 1020. doi.org/10.31274/cpn-20190620-015</li><br /> </ul>

Publications

<p><strong>Publications</strong></p><br /> <p>Barro, J.P., Del Ponte, E.M., Allen, T., Bond, J.P., Faske, T.R., Hollier, C.A., Kandel, Y.R., Mueller, D.S., Kelly, H.M., Kleczewski, N.M., Price, P., Sikora, E., and Bradley, C.A. 2023. Meta-analytic modeling of the severity-yield relationships in soybean frogeye leaf spot epidemics. Plant Disease. 107:3422-3429. <a href="https://doi.org/10.1094/PDIS-03-23-0440-RE">https://doi.org/10.1094/PDIS-03-23-0440-RE</a></p><br /> <p>Barro, J. P., Neves, D. L., Del Ponte, E. M., and Bradley, C. A. 2023. Frogeye leaf spot caused by Cercospora sojina: A review. Tropical Plant Pathology 48:363-374. https://doi.org/10.1007/s40858-023-00583-8.</p><br /> <p>Batzer, J., Shirazi, A., Lawson, M. N., Mathew, F. M., Sureshbabu, B. M., Smith, D. L., and Mueller, D. S. 2023. Impact of foliar fungicide application on the culturable fungal endophyte community of soybean seed in the Midwest U.S. Plant Dis. <a href="https://doi.org/10.1094/PDIS-06-23-1122-RE">https://doi.org/10.1094/PDIS-06-23-1122-RE</a></p><br /> <p>Batzer, J.C., Shirazi, A., Dangal, N., Lawson, M., Mathews, F., Smith, D.L., and Mueller, D.S. 2023. Diversity and phenology of soybean seed fungal endophyte communities in the Upper Midwest United States. PhytoFrontiers. 3:810-822. <a href="https://doi.org/10.1094/PHYTOFR-04-23-0048-R">https://doi.org/10.1094/PHYTOFR-04-23-0048-R</a></p><br /> <p>Bissonnette, K.M., Barizon, J., Adee, E., Ames, K.A., Becker, T., Biggs, M., Bradley, C.A., Brown, M. T., Byamukama, E., Chilvers, M.I., Faske, T.R., Harbach, C.J., Jackson-Ziems, T.A., Kandel, Y.R., Kleczewski, N.M., Koehler, A.M., Markell, S.G., Mueller, D.S., Sjarpe, D.A., Smith, D.L., Telenko D.E.P., and Tenuta, A.U. 2024. Management of soybean cyst nematode and sudden death syndrome with nematode-protectant seed treatments across multiple environments in soybean. Plant Disease. <a href="https://doi.org/10.1094/PDIS-02-23-0292-RE">https://doi.org/10.1094/PDIS-02-23-0292-RE</a>.</p><br /> <p>Bonkowski, J., Goodnight, K. M., Grskovich, M. R., Telenko, D. E. P. 2024. First Report of Calonectria ilicicola Causing Red Crown Rot of Soybean in Indiana. Plant Disease. <a href="https://doi.org/10.1094/PDIS-10-23-2198-PDN">https://doi.org/10.1094/PDIS-10-23-2198-PDN</a>.</p><br /> <p>Brown, M.T., Mueller, D.S., Kandel, Y.R., and Telenko, D.E.P. 2023. Influence of integrated management strategies on soybean sudden death syndrome (SDS) root infection, foliar symptoms, yield and net returns. Pathogens. 12, 913. <a href="https://doi.org/10.3390/pathogens12070913">https://doi.org/10.3390/pathogens12070913</a></p><br /> <p>Brown, K., Kelly, J., Faske, T. R., 2023. Sensitivity of Meloidogyne incognita to pydiflumetofen Crop Protection 173:106386. https://doi.org/10.1016/j.cropro.2023.106386</p><br /> <p>Brown, M. T., Shim, S., Da Silva, C. R., Waibel, K. G. and Telenko, D. E. P. 2023. Assessing foliar fungicides for soybean disease management and yield in Indiana. Plant Health Progress. <a href="https://doi.org/10.1094/PHP-05-23-0046-RS">https://doi.org/10.1094/PHP-05-23-0046-RS</a>.</p><br /> <p>Campos, P., D. Miller, J. Copes, M. Netterville, S. Brown, T. Price, D. Moseley, T. Gentimis, P. Egbedi, R. Parvej. 2023. Influence of planting date, maturity group, and harvest timing on soybean yield and seed quality. Agronomy Journal. 2023;1-7.</p><br /> <p>Campos, P., D. Miller, J. Copes, M. Netterville, S. Brown, T. Price, D. Moseley, T. Gentimis, P. Egbedi, R. Parvej. 2023. Influence of harvest aid on soybean seed quality affected by delayed harvest and environment in Louisiana. Crop, Forage, and Turfgrass Mgmt. 2023;9:e20221.</p><br /> <p>Critchfield, R., King, J., Telenko, D. E. P., Creswell, T., Bonkowski, J., and Zhang, L. 2023. Characterization of virulence phenotypes of Heterodera glycines during 2020 in Indiana. Journal of Nematology 55:e2023-1 <a href="https://doi.org/10.2478/jofnem-2023-0039">https://doi.org/10.2478/jofnem-2023-0039</a>.</p><br /> <p>Conrad, A. M. and Telenko, D. E. P. 2023. Efficacy of biocontrol agents Coniothyrium minitans and Bacillus amyloliquefaciens for controlling Sclerotinia sclerotiorum in Indiana soybean. PhytoFrontiers. doi.org/10.1094/PHYTOFR-07-22-0080-R.</p><br /> <p>Conrad, A. M., Johnson, W. G., Cruz, C. D., and Telenko, D. E. P. 2023. Integration of Sclerotinia sclerotiorum targeted biofungicides Coniothyrium minitans and Bacillus amyloliquefaciens into season-long soybean pest management practices in Indiana. PhytoFrontiers. doi/10.1094/PHYTOFR-08-22-0082-R.</p><br /> <p>Emerson, M., Faske, T. R., 2023. Evaluation of foliar fungicides for frogeye leaf spot control and yield protection in soybean in Arkansas. Crop Protection: 173:106572 <a href="https://doi.org/10.1016/j.cropro.2023.106572">https://doi.org/10.1016/j.cropro.2023.106572</a></p><br /> <p>Faske, T. R., Mueller, J., Becker, J. O., Bernard, E. C., Bradley, C., Bond, J., Desager, J., Eisenback, J., Grabau, Z., Hu, J., Kemerait, R., Koehler, A., Lawrence, K., Mehl, H., Rudolph, R. E., Sikora, E. J., Thomas, S., Walker, N., Wheeler, T., Wrather, A. J., Ye, W., and Zhang, L. 2023. Summarized distribution of the southern root-knot nematode, Meloidogyne incognita, in field crops in the United States. Plant Health Progress 24:522-524. <a href="https://doi.org/10.1094/PHP-04-23-0031-BR">https://doi.org/10.1094/PHP-04-23-0031-BR</a>.</p><br /> <p>Floyd, C. A., Irby, J. T., Allen, T. W., Catchot, A. L., Dodds, D. M., Sarver, J. M., Maples, W. W., Scholtes, A. B., and Carver, S. M. 2023. Evaluation of soybean grain quality and yield across various row spacings, planting dates, and fungicide programs. Crop, Forage and Turfgrass Management 9(1)e20201.</p><br /> <p>Haafke, A.J., Kandel, Y.R., Batzer, J.C., Dangal, N.K., and Mueller, D.S. 2023. Effects of seed treatments and plant stand on Diaporthe-infected soybean seed. Plant Health Progress. 24:453-461. <a href="https://doi.org/10.1094/PHP-03-23-0019-RS">https://doi.org/10.1094/PHP-03-23-0019-RS</a>.</p><br /> <p>Hamilton, R., Jacobs, J.A., McCoy, A.G., Kelly, H.M., Bradley, C.A., Malvick, D.K., Rojas5 J.A., and Chilvers, M.I. 2024. Multistate sensitivity monitoring of Fusarium virguliforme to the SDHI fungicides fluopyram and pydiflumetofen in the United States. Plant Disease. In-press. https://doi.org/10.1094/PDIS-11-23-2465-RE</p><br /> <p>Hamilton, R., Jacobs, J.L,. McCoy, A.G., Kelly, H.M., Bradley, C.A., Malvick, D.k., Rojas, J.A,. Hebb, L. M., Bradley, C. A., Telenko, D. E. P., Wise, K. A., and Dorrance, A. E. 2023. Isolates of Phytophthora sansomeana Display a Range of Aggressiveness on Soybean Seedlings. Plant Health Progress. <a href="https://doi.org/10.1094/PHP-08-22-0075-RS">https://doi.org/10.1094/PHP-08-22-0075-RS</a>.</p><br /> <p>Kandel, Y. R., Brown, M. T., Byrne, A., Jacobs, J., Chilvers, M. I., Ernat, E. M., Kleczewski, N. M., Mueller, B., Telenko, D. E. P., Tenuta, A. U., Smith, D. L., and Mueller, D. S. 2023. Integration of host resistance, seed treatment, and seeding rate for management of sudden death syndrome, a disease of soybean caused by Fusarium virguliforme. Plant Health Progress. 24: 445-452. <a href="https://doi.org/10.1094/PHP-04-22-0036-RS">https://doi.org/10.1094/PHP-04-22-0036-RS</a>.</p><br /> <p>Kandel, Y. R., Lawson, M. N., Brown, M. T., Chilvers, M. I., Kleczewski, N. M., Telenko, D. E. P., Tenuta, A. U., Smith, D. L, Mueller, D. S. 2023. Field and greenhouse assessment of seed treatment fungicides for management of root rot and foliar symptoms of sudden death syndrome and grain yield response of soybean. Plant Disease. 107:1131-1138. doi.org/10.1094/PDIS-03-22-0527-RE</p><br /> <p>Karthika M., Kontz B., Okello P., Allen T., Bergstrom G., Bissonnette K., Bradley C., Buck J., Chilvers M., Dorrance A., Giesler L., Kelly H., Koehler A., Lopez-Nicora H., Mangel D., Markell S., Mueller D., Price P., Rojas A., Shires M., Smith D., Spurlock T., Webster R., Wise K., Yabwalo D., Mathew F. 2023. Variation in isolate virulence and accession resistance associated with Diaporthe aspalathi, D. caulivora, and D. longicolla in soybean (Glycine max L.). Plant Health Progress. 106(6): 1621-1629. https://doi.org/10.1094/PDIS-03-20-0604-RE</p><br /> <p>Kessler A.C. and Koehler A.M. 2023. Seed treatments for management of soybean cyst nematode, Heterodera glycines in Mid-Atlantic soybean production. Journal of Nematology. 55(1). doi: 10.2478/jofnem-2023-0026</p><br /> <p>Kleczewski, N.M., Bradley, C.A., Hartman, G., Kandal, Y.#, Mueller, D., and Rodriguez-Salamanca, L. 2023. A diagnostic guide for red crown rot of soybean. Plant Health Progress. 24:123-129. <a href="https://doi.org/10.1094/PHP-04-22-0041-DG">https://doi.org/10.1094/PHP-04-22-0041-DG</a></p><br /> <p>Lamichhane, J.R., Barbetti, M., Chilvers, M.I., Pandey, A.K., Steinberg, C. Accepted Aug 18, 2023. Exploiting root exudates to manage soil-borne disease complexes in a changing climate. Trends in Microbiology, [2279]. <a href="https://doi.org/10.1016/j.tim.2023.07.011">https://doi.org/10.1016/j.tim.2023.07.011</a></p><br /> <p>McCoy, A. G., Belanger, R. R., Bradley, C. A., Cerritos-Garcia, D. G., Garnica, V. C., Giesler, L. J., Grijalba, P. E., Guillin, E., Henriquez, M. A., Kim, Y. M., Malvick, D. K., Matthiesen, R. L., Mideros, S. X., Noel, Z. A., Robertson, A. E., Roth, M. G., Schmidt, C. L. Smith, D. L., Sparks, A. H., Telenko, D. E. P., Tremblay, V., Wally, O., and Chilvers, M. I. 2023. A global-temporal analysis of Phytophthora sojae resistance-gene efficacy. Nature Commun.14: 6043. <a href="https://doi.org/10.1038/s41467-023-41321-7">https://doi.org/10.1038/s41467-023-41321-7</a>.</p><br /> <p>Mohan, K., Kontz, B., Okello, P., Allen, T.W., Bergstrom, G., Bish, M., Bissonnette, K., Bonkowski, J., Bradley, C.A., Buck, J., Chilvers, M.I., Dorrance, A., Giesler, L., Kelly, H., Koehler, A., Lopez-Nicora, H., Mangel, D., Markell, S.G., Mueller, D., Price, P.P., Rojas, A., Shires, M., Smith, D., Spurlock, T., Webster, R.W., Wise, K., Yabwalo, D., and Mathew, F.M. 2023. Variation in isolate virulence and accession resistance associated with Diaporthe aspalathi, D. caulivora, and D. longicolla in soybean. Plant Health Progress. 24:482-487. https://doi.org/10.1094/PHP-04-23-0041-RS</p><br /> <p>Nieto-Lopez, E.H., Miorini, T.J.J., Wulkop-Gil, C.A., Chilvers, M., Giesler, L.J., Jackson-Ziems, T.A., Kabbage, M., Mueller, D.S., Smith, D.L., Tovar-Pedraza, J.M., Willbur, J.F., and Everhart, S.E. 2023. Fungicide sensitivity of Sclerotinia sclerotiorum from U.S. soybean and dry bean, compared to different regions and climates. Plant Disease. 107:2395-2406. <a href="https://doi.org/10.1094/PDIS-07-22-1707-RE">https://doi.org/10.1094/PDIS-07-22-1707-RE</a>.</p><br /> <p>Neves, D. L., Mehl, K. M., and Bradley, C. A. 2023. First report of red crown rot, caused by Calonectria ilicicola, and its effect on soybean in Kentucky. Plant Health Progress 24:303-305. <a href="https://doi.org/10.1094/PHP-01-23-0001-SC">https://doi.org/10.1094/PHP-01-23-0001-SC</a>.</p><br /> <p>Nunes, J.J., Arneson, N.J., DeWerff, R.P., Ruark, M., Conley, S., Smith, D.L. and Werle, R. 2023. Planting into living cover crop alters preemergence herbicide dynamics and can reduce soybean yield. Weed Technology. <a href="https://doi.org/10.1017/wet.2023.41">https://doi.org/10.1017/wet.2023.41</a>.</p><br /> <p>Okello, P. N., Solanki, S., Rafi, N., and Mathew, F.* 2023. Sources of resistance, effect of maturity groups, and marker-trait associations associated with Fusarium graminearum causing root rot of soybean (Glycine max). Plant Health Prog. <a href="https://doi.org/10.1094/PHP-01-23-0011-RS">https://doi.org/10.1094/PHP-01-23-0011-RS</a></p><br /> <p>Ortiz, V., Chang, H.-X., Sang, H., Jacobs, J., Malvick, D.K., Baird, R., Mathew, F.M., Est&eacute;vez de Jensen C., Wise, K.A., Mosquera, G.M., Chilvers, M.I. 2023. Population genomic analysis reveals geographic structure and climatic diversification for Macrophomina phaseolina isolated from soybean and dry bean across the US, Puerto Rico, and Colombia. Frontiers in Genetics. 14:1103969 <a href="https://doi.org/10.3389/fgene.2023.1103969">https://doi.org/10.3389/fgene.2023.1103969</a></p><br /> <p>Pi&ntilde;eros-Guerrero, N., Neves, D. L., Bradley, C. A., and Telenko, D. E. P. 2023. Determining the distribution of QoI fungicide-resistant Cercospora sojina on soybean from Indiana. Plant Disease 107:1012-1021. <a href="https://doi.org/10.1094/PDIS-08-22-1744-SR">https://doi.org/10.1094/PDIS-08-22-1744-SR</a>.</p><br /> <p>Roggenkamp, E.M., Check, J.C., Biswal, A.K., Floyd, C.M., Miles, L.A., Nicolli, C.P., Shim, S., Salgado-Salazar, C., Amos E. Alakonya, Malvick, D.K., Smith, D.L., Telenko, D.E.P., Chilvers, M.I. 2023. Development of a qPCR assay for species-specific detection of the tar spot pathogen Phyllachora maydis". PhytoFrontiers. <a href="https://doi.org/10.1094/PHYTOFR-04-23-0050-FI">https://doi.org/10.1094/PHYTOFR-04-23-0050-FI</a>.</p><br /> <p>Rodriguez-Herrera, K., Doyle, V.P., Price, P., Padgett, B., Thomas-Sharma, S. 2023. Aerial blight of soybean caused by Rhizoctonia solani AG1-IA: A diagnostic guide. &ldquo;Plant Health Progress&rdquo; 24:234-241. https://doi.org/10.1094/PHP-05-22-0043-DG.</p><br /> <p>Shrestha, B. K., Ward B., Allen, T., da Silva, E. T., Zulli, H., Dunford W., Doyle, V. P., Bradley, C. A., Buckley, B., Chen, P., Clubb, M., Kelly, H., Koebernick, J., Padgett, G.B., Rupe, J. C., Sikora, E.J., Spurlock, T. N., Thomas-Sharma, S., Tolbert, A.C., Zhou, X.-G., Price, P. Characterization of QoI-fungicide resistance in Cercospora isolates associated with Cercospora leaf blight of soybean from the southern United States. &ldquo;Plant Disease.&rdquo; Accepted. https://doi.org/10.1094/PDIS-03-23-0588-RE. &bull;</p><br /> <p>Sisson, A.J. and Mueller, D.S. 2023. Training resource for improvement of visual assessment of plant disease and insect defoliation severity. PhytoFrontiers. 3:697-700. <a href="https://doi.org/10.1094/PHYTOFR-11-22-0125-A">https://doi.org/10.1094/PHYTOFR-11-22-0125-A</a>.</p><br /> <p>Wang, X., Aboughanem-Sabanadzovic, N., Sabanadzovic, S., Tomaso-Peterson, M., Wilkerson, T. H., and Allen, T. W. 2023. Evaluating in vitro fitness parameters of G143A-containing and wild-type Corynespora cassiicola isolates from Mississippi soybean. Plant Disease 107:2375-2383.</p><br /> <p>Wang, X., Aboughanem-Sabanadzovic, N., Sabanadzovic, S., Tomaso-Peterson, M., Wilkerson, T. H., and Allen, T. W. 2023. Defining fungicide resistance mechanisms in the Corynespora cassiicola population from Mississippi soybean. Plant Disease 107:2365-2374.</p><br /> <p>Webster, R.W., McCaghey, M., Mueller, B.D., Groves, C.L., Mathew, F.M., Singh, A.K., Kabbage, M., and Smith, D.L. 2023. Development of Glycine max germplasm highly resistant to Sclerotinia stem rot. PhytoFrontiers. <a href="https://doi.org/10.1094/PHYTOFR-01-23-0009-R">https://doi.org/10.1094/PHYTOFR-01-23-0009-R</a>.</p><br /> <p>Webster, R.W., Mueller, B., Conley, S.P., and Smith, D.L. 2023. Integration of soybean (Glycine max) resistance levels to Sclerotinia stem rot into predictive Sclerotinia sclerotiorum apothecial models. Plant Disease. <a href="https://doi.org/10.1094/PDIS-12-22-2875-RE">https://doi.org/10.1094/PDIS-12-22-2875-RE</a>.</p><br /> <p>Webster, R.W., Mueller, B., Chilvers, M.I., Byrne, A., Boyse, J., Widdicombe, W., Mueller, D., Wiggs, S., Kandel, Y., Telenko, D., Ravellette, J., Shim, S., and Smith, D.L. 2023. Integrating seeding rates and pesticide programs for managing Sclerotinia stem rot in Glycine max with nitrogen fertilizer applications. Plant Health Progress. <a href="https://doi.org/10.1094/PHP-10-22-0102-RS">https://doi.org/10.1094/PHP-10-22-0102-RS</a>.</p><br /> <p>&nbsp;</p><br /> <p><span style="text-decoration: underline;">Proceedings </span></p><br /> <p>Allen, T., Price, P., Faske, Spurlock, T., and Wilkerson, T. 2023. Taproot decline of soybean, caused by Xylaria necrophora, an emerging threat to profitable soybean production in the southern United States. Page 429 in: World Soybean Research Conference, 18-23 June, Vienna, Austria.</p><br /> <p>Allen, T. 2023. Documenting fungicide resistance in the southern United States: A continuing series of surveys in Mississippi. Page 436 in: World Soybean Research Conference, 18-23 June, Vienna, Austria.</p><br /> <p>Allen, T. W., Bissonnette, K., Bradley, C. A., Faske, T. R., Grabau, Z., Isakeit, T., Kemerait, R. C., Koehler, A., Langston, D., Lofton, J., Mueller, J. D., Padgett, B. B., Price, P. P., Sikora, E. J., Small, I. M., Vann, R., and Young, H. 2023. Southern United States soybean disease loss estimates for 2022. Pages 1-11 in: Proceedings of the Southern Soybean Disease Workers</p><br /> <p>Connor, A., Allen, T., Madrid, A. J., Aboughanem-Sabanadzovic, N., Irby, T., and Wilkerson, T. 2023. Quantification of Athelia rolfsii by qCPR to assess cultivar susceptibility and fungicide efficacy for control of southern blight of soybean. Page 21 in: Proceedings of the Southern Soybean Disease Workers</p><br /> <p>Connor, A., Allen, T., Jimenez Madrid, A. M., Aboughanem-Sabanadzovic, A., Irby, T., and Wilkerson, T. H. 2023. Quantitative evaluation of fungicide efficacy and soybean cultivar susceptibility for control of southern blight of soybean. Phytopathology 113:S2.36.</p><br /> <p>Corser, J., Madrid, A. J., Wilkerson, T. H., and Allen, T. W. 2023. Evaluating fungicide sensitivity within the Septoria glycines population from Mississippi soybean. Page 23 in: Proceedings of the Southern Soybean Disease Workers</p><br /> <p>Emerson, M., Baker, B., Faske, T. R., 2023. Field performance of thirty-six soybean varieties marketed as resistant to southern root-knot nematode, 2022. Pp. 59-62. in Soybean Research Studies, 2022. Arkansas Agriculture Experiment Station, Research Series 698.</p><br /> <p>Emerson, M., Baker, B., Faske, T. R., 2023. Field performance of thirty-six soybean varieties marketed as resistant to southern root-knot nematode, 2022. Pp. 59-62. in Soybean Research Studies, 2022. Arkansas Agriculture Experiment Station, Research Series 698.</p><br /> <p>Galagedara, N., V. Doyle, P. Price, B. Padgett, and S. Thomas-Sharma. 2023. Tracking the causal agents of Cercospora leaf blight of soybean to better understand epidemiology and improve disease management. Phytopathology 113:S3.166.</p><br /> <p>Hamilton, R., McCoy, A., Jacobs, J. L., Strbich, M., Kelly, H. M., Bradley, C. A., Malvick, D. K., Rojas, A., and Chilvers, M. 2023. Fluopyram sensitivity monitoring in Fusarium virguliforme, the primary causal agent of soybean sudden death syndrome in North America. Phytopathology 113:S3.2. Neves, D., and Bradley, C. A. 2023. Survey for quinone outside inhibitor fungicide-resistant pathogens in Kentucky soybean fields. Phytopathology 113:S3.51.</p><br /> <ol start="2023"><br /> <li>P. ADCOCK, H. M. Kelly, A. Shekoofa. 2023. Effects of fungicide application in differing water available environments on soybean. Phytopathology, Volume 113, Issue 11s: Plant Health 2023 Supplement.</li><br /> </ol><br /> <p>Kessler, M., Smith, D. L., Chilvers, M., Mathew, F. M., Mohan, K., Rafi, N., Telenko, D., Malvick, D. K., Fakhoury, A. M., Bond, J. P., Lopez-Nicora, H., Roth, M., Little, C. R., Wiggs, S. N., Mueller, D. S., Dangal, N. K., and Onofre, R. B. 2023. A multistate seed treatment evaluation for soybean sudden death syndrome in 2022. Plant Health 2023, American Phytopathological Society (APS) meeting, Denver, CO. August 12-16, 2023. (Poster).</p><br /> <p>Larson, E., Ali, M. U., Mathew, F. M., Sureshbabu, B. M., and Crandall, S. 2023. The microbiome of soybean seeds: epiphytes and endophytes across generations. Plant Health 2023, American Phytopathological Society (APS) meeting, Denver, CO. August 12-16, 2023. (Poster)</p><br /> <p>PATE, S., and H. M. Kelly. 2023. Using histology to gain a deeper understanding of Xylaria necrophora. Phytopathology, Volume 113, Issue 11s: Plant Health 2023 Supplement</p><br /> <p>Ramos, S. K., N. Galagedara, E. T. Da Silva, B. K. Shrestha, J. Aime, T. Setiyono, T. N. Spurlock, T. W. Allen, P. Price, B. Padgett, V. Doyle, and S. Thomas-Sharma. 2023. Developing tools for integrated management of Cercospora leaf blight on soybean across the mid-South. Phytopathology 113:S3.182. Student Presentation and Abstract</p><br /> <p>Salazar, I. L. M., Allen, T., Bond, J. P., Bradley, C. A., Chilver, M., Fakhoury, A. M., Faske, T. R., Kelly, H. M., Mathew, F. M., Mueller, D. S., Nicolli, C., Onofre, R. B., Price, P., Thomas-Sharma, S., Sikora, E. J., Small, I. M., Webster, R., Smith, D. L., and Telenko, D. E. P. 2023. Coordinated foliar fungicide evaluation in soybean in the United States in 2022. Plant Health 2023, American Phytopathological Society (APS) meeting, Denver, CO. August 12-16, 2023. (Poster)</p><br /> <p>Rasuleva, D., Mohan, K., Sureshbabu, B. M., Danforth, L., Allen, T., Bergstrom, G., Bissonnette, K., Bradley, C., Buck, J., Chilvers, M., Dorrance, A., Geisler, L., Kelly, H., Kleczewski, N., Koehler, A., Malvick, D., Mangel, D., Markell, S., Mueller, D., Rojas, A., Shires, M., Smith, D., Spurlock, T., Telenko, D., Webster, R., Wise, K., and Mathew, F. 2023. Sensitivity of soybean (Glycine max L.) pathogens, Diaporthe aspalathi, D. caulivora and D. longicolla to fluopyram fungicide. 2023 American Society of Agronomy, the Crop Science Society of America, and the Soil Science Society of America International annual meeting, St. Louis, MO, October 29 to November 1, 2023 (Virtual Talk).</p><br /> <p>Taylor, P., Lory, J., Calhoun, J., Shannon, K., Ohmes, A., Ellis, C., Wesslak, N., Lee, R., Flanary, W., Bissonnette, K., Tian, P,. and Bish, M. (2023) Soybean Response to R3 Foliar Fungicide Applications. North Central APS Meeting. West Lafayette, IN. June 21-22.</p><br /> <p>Tripathi, S., Allen, T., Madrid, A. J., and Wilkerson, T. 2023. Fungicides sensitivity of Athelia rolfsii from Mississippi fields. Page 20 in: Proceedings of the Southern Soybean Disease Workers</p><br /> <p>Yan. G., Poudel, D., Nelson, Jr., B. D., Ebert, M., Mathew, F. M., Markell, S., and Webster, R. W. 2023. First detection of the fungal species Clonostachys rosea from infected soybean plants in North Dakota. Plant Health 2023, American Phytopathological Society (APS) meeting, Denver, CO. August 12-16, 2023. (Poster)</p><br /> <p>&nbsp;</p><br /> <p><span style="text-decoration: underline;">Technical reports: </span></p><br /> <p>Brown, M. T., Brand, S. B., and Telenko, D. E. P. 2023. Evaluation of seed treatment for management of sudden death syndrome on soybean in central Indiana, 2022. Plant Disease Management Reports. Vol 17: ST001</p><br /> <p>Da Silva, C. R., Brand, S. B., and Telenko, D. E. P. 2023. Evaluation of OMRI (Organic Materials Review Institute) products for white mold in organic soybean in northwestern Indiana, 2022. Plant Disease Management Reports. Vol 17: CF038</p><br /> <p>Duncan, E. A., Brand, S. B., and Telenko, D. E. P. 2023. Comparison of fungicide efficacy for foliar disease of soybeans in central Indiana, 2022. Plant Disease Management Reports. Vol 17: CF031</p><br /> <p>Kessler L. and Koehler A.M. 2023. Evaluation of foliar fungicides for management of soybean diseases in Delaware, 2022. Plant Disease Management Reports. 17:CF054.</p><br /> <p>Mueller, B. and Smith, D.L. 2023. Evaluation of foliar fungicide treatments for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2022. Plant Disease Management Reports 17:CF046.</p><br /> <p>Mueller, B. and Smith, D.L. 2023. Evaluation of foliar fungicide treatments for control of Sclerotinia stem rot of soybean in Arlington, Wisconsin, 2022. Plant Disease Management Reports 17:CF047.</p><br /> <p>Mueller, B. and Smith, D.L. 2023. Evaluation of foliar fungicides for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2022. Plant Disease Management Reports 17:CF048.</p><br /> <p>Mueller, B. and Smith, D.L. 2023. Evaluation of foliar fungicides for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2022. Plant Disease Management Reports 17:CF049.</p><br /> <p>Mueller, B. and Smith, D.L. 2023. Evaluation of foliar fungicides for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2022. Plant Disease Management Reports 17:CF050.</p><br /> <p>Mueller, B. and Smith, D.L. 2023. Evaluation of an herbicide and fungicides for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2022. Plant Disease Management Reports 17:CF051.</p><br /> <p>Waibel, K. G., Boyer, J., and Telenko, D. E. P. 2023. Field-scale fungicide timing for foliar diseases on soybean in northeastern Indiana, 2022. Plant Disease Management Reports. Vol 17: CF039</p><br /> <p>&nbsp;</p><br /> <p><span style="text-decoration: underline;">Extension Articles:</span></p><br /> <p>Thomas-Sharma, S., V. P. Doyle, N. Galagedara, T. Price, B. Padgett, L. Connor, R. Dhakal, and T. Setiyono.&nbsp; 2023.&nbsp; Translating spore peaks to soybean profits:&nbsp; Can targeted fungicide applications improve Cercospora leaf blight management?&nbsp; Summer 2023.&nbsp; 30-31.</p><br /> <p>Bonkowski, J., Goodnight, K. M., Grskovich, M. R., Telenko, D. E. P. 2024. First Report of Calonectria ilicicola Causing Red Crown Rot of Soybean in Indiana. Plant Disease. https://doi.org/10.1094/PDIS-10-23-2198-PDN</p><br /> <p>Allen, T. 2022 Soybean stem canker inoculated variety trial evaluations (revised). Mississippi Crop Situation, March 28, 2023.</p><br /> <p>Allen, T., Mueller, D., and Sisson, A. 2023. Soybean disease loss estimates from the United States and Ontario, Canada - 2022. Crop Protection Network, CPN-1018-22. DOI: doi.org/10.31274/cpn-20230421-1</p><br /> <p>Sikora, E. J. Field demonstration shows benefit of timely fungicide application.&nbsp; Alabama Crops Report 1/17/23.&nbsp; Alabama Cooperative Extension System.</p><br /> <p>Sikora, E. J. Fungicide efficacy chart for soybean diseases, 2023.&nbsp; Alabama Crops Report 2/14/2023.&nbsp; Alabama Cooperative Extension System.</p><br /> <p>Sikora, E. J. No rust is good rust. Alabama Crops Report 5/16/23.&nbsp; Alabama Cooperative Extension System</p><br /> <p>Sikora, E. J. Taproot decline appearing in Alabama soybean fields.&nbsp; Alabama Crops Report 7/26/23.&nbsp; Alabama Cooperative Extension System</p><br /> <p>Sikora, E. J. Soybean rust finally makes an appearance this year.&nbsp; Alabama Crops Report 8/8/23.&nbsp; Alabama Cooperative Extension System.</p><br /> <p>Sikora, E. J. Frogeye leaf spot detected on soybeans in Elmore County. Alabama Crops Report 8/8/23.&nbsp; Alabama Cooperative Extension System.</p><br /> <p>Sikora, E. J. Brown spot on soybeans.&nbsp; Alabama Crops Report 8/26/23.&nbsp; Alabama Cooperative Extension System.</p><br /> <p>Sikora, E. J. Soybean disease update.&nbsp; Alabama Crops Report 8/26/23.&nbsp; Alabama Cooperative Extension System.</p><br /> <p>Faske, T. R. and Spurlock, T. 2023. Arkansas Plant Disease Control Products Guide, MP154. UADA, Cooperative Extension Service, Little Rock, AR.</p><br /> <p>Emerson, M., Baker, B., Brown, K, and Faske, T.&nbsp; 2023. Susceptibility and yield of forty-four soybean varieties to the southern root-knot nematode, 2023.&nbsp; University of Arkansas Row Crops Blog.</p><br /> <p>Mueller, B. and Smith, D.L. 2023. Evaluation of foliar fungicide treatments for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2022. Plant Disease Management Reports 17:CF046.</p><br /> <p>Mueller, B. and Smith, D.L. 2023. Evaluation of foliar fungicide treatments for control of Sclerotinia stem rot of soybean in Arlington, Wisconsin, 2022. Plant Disease Management Reports 17:CF047.</p><br /> <p>Mueller, B. and Smith, D.L. 2023. Evaluation of foliar fungicides for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2022. Plant Disease Management Reports 17:CF048.</p><br /> <p>Mueller, B. and Smith, D.L. 2023. Evaluation of foliar fungicides for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2022. Plant Disease Management Reports 17:CF049.</p><br /> <p>Mueller, B. and Smith, D.L. 2023. Evaluation of foliar fungicides for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2022. Plant Disease Management Reports 17:CF050.</p><br /> <p>Mueller, B. and Smith, D.L. 2023. Evaluation of an herbicide and fungicides for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2022. Plant Disease Management Reports 17:CF051.</p><br /> <p>Bish, M and Tian P. June 2023. Early-season Charcoal Rot? Mizzou Crop &amp; Pest News. University of Missouri Integrated Pest Management Program.</p><br /> <p>Koehler A.M. Scouting for Soybean Cyst Nematode. Delaware Weekly Crop Update. 6.23.23</p><br /> <p>Koehler A.M. Soybean Updates. Delaware Weekly Crop Update. 7.21.23</p><br /> <p>Koehler A.M. Root knot nematode in field crops and vegetables. Delaware Weekly Crop Update. 7.28.23</p><br /> <p>Koehler A.M. Diseases in Soybean. Delaware Weekly Crop Update. 8.17.23</p><br /> <p>Koehler A.M. Soil Sampling for nematodes in soybean. Delaware Weekly Crop Update. 9.7.23</p><br /> <p>Soybean Variety Tests in Tennessee 2023 - <a href="https://search.utcrops.com/wp-content/uploads/2023/12/2023-Soybean-Report-Combined-2.pdf">https://search.utcrops.com/wp-content/uploads/2023/12/2023-Soybean-Report-Combined-2.pdf</a></p><br /> <p>Studying the Connections Between Sudden Death Syndrome and Soybean Cyst Nematode Thrive https://www.syngenta-us.com/thrive/research/studying-the-connections.html</p><br /> <p>Chilvers, M., Byrne, J. Manage volunteer wheat now to reduce virus issues for the 2024 crop! Michigan Farm News Aug 11, 2023</p><br /> <p>Chilvers, M., White mold management Michigan Farm News Aug 11, 2023</p><br /> <p>Staton, M., Chilvers, M. white mold, too late to spray?</p><br /> <p>Carol Brown Studying the Connections Between Sudden Death Syndrome and SCN. Soybean Research and Information Network https://soybeanresearchinfo.com/research-highlight/studying-the-connections-between-sudden-death-syndrome-and-scn/</p><br /> <p>Louisiana Ag Magazine, Louisiana Crops Newsletter</p><br /> <p>Markell, S., Malvick, D., Mathew, F., Webster, R. and Yan, G. 2023.&nbsp; Disease management and identification. Pp 104-129 in: Kandel, H. and Endres, G. 2023. North Dakota Soybean Production Field Guide. North Dakota Extension Publication A1172. 176Pp.</p>

Impact Statements

1. Impacts 1. Objective 1: Foster collaborative research and information exchange on new and emerging soybean diseases among scientists in the North Central Region including soybean breeders and entomologists that will lead to improved disease screening protocols, additional sources of disease resistance genes and ultimately, improved host plant resistance. Project participants work on diverse systems including Xylaria necrophora, pathotype diversity of P. sojae, Cadophora gregata, Sclerotinia sclerotiorum, Heterodera glycines, Calonectria ilicicola among others. Four varieties were released with resistance to Sclerotinia sclerotiorum in 2022, which will be released to farmers in 2024. 2. Objective 2. Compare findings on the impacts of changing production practices such as earlier planting dates, new sources of host plant resistance, increased use of fungicide seed treatments and foliar fungicides, and other new or improved crop production technologies on soybean diseases that could be adopted for other production areas in the region. Project participants are evaluating several seed-applied nematicides to the southern root-knot nematode, seed treatments for management of sudden death syndrome and soybean cyst nematode, facilitating submission of soil samples for SCN testing in individual states, evaluate the sensitivity of Cercospora sojina and Diaporthe collected from multiple U.S. states to DMI, MBC, and SDHI fungicides, among others. A consensus fungicide efficacy data is prepared by the NCERA 137 group members at individual institutions in concert with Crop Protection Network to build the foundation for fungicide guidelines published annually for farmers. 3. Objective 3. Compare data from studies of the ecology and epidemiology of soybean diseases important in the North Central Region. Project participants are coordinating efforts to conduct epidemiology trials to understand Cercospora-associated diseases in soybean. This includes spore trapping efforts and disease rating efforts among numerous states who participate in coordinated foliar fungicide trials. In addition to Cercospora, the project participants are also involved in assessing yield losses associated with soybean diseases in the NC region. As an example, red crown rot was added to the list of soybean diseases as this disease is being found in more states. Yield loss data is compiled to track disease impacts annually by region, nationally and across years. 4. Objective 4. Improve knowledge transfer about soybean diseases and their management in the North Central Region to researchers, Extension faculty, producers and the agribusiness community through the use of web sites, podcasts, social media (Twitter and Facebook) and other new technologies as they are developed. Knowledge transfer is being conducted via webinars for CPN, I See Dead Plants podcast, A Penny for your thought podcast, first MU youth scouting event for students from 6th to 12th grade, extension meetings, trade shows, field days, webinars, newsletters, podcasts, blog posts, newspaper articles, radio spots, YouTube videos, program webpages, public media interviews, ag media (DTN Progressive Farmer, MoSoy, AgWeek, etc.), leveraged partner media (agrochemical companies), and twitter. Multi-state reports, including yield loss estimates and fungicide efficacy charts are housed with the Crop Protection Network. Many participants are also active in the SCN Coalition. 5. Objective 5. Continue to monitor and share information for any new or reemerging pathogens of soybean in the North Central Region and develop appropriate responses to their emergence as they occur. Participants work with extension agents, stakeholders, farmers, industry, university researchers, and respective diagnostic clinics to monitor for potential new of emerging and re-emerging diseases. Many states are supporting testing of soil for SCN, monitoring for red crown rot, taproot decline, Cercospora leaf blight, Diaporthe-associated diseases, soybean cyst nematode, soybean rust, and spread of fungicide resistant C. sojina. Milestones: In year 5 (10/1/22-9/30/23) of this 5-year project, collaborative research projects continue to advance understanding of soybean disease management options and providing management recommendations to farmers. Annually, the NCERA 137 participants support yield loss estimates associated with soybean diseases in individual states, which are used to develop the CPN disease loss calculator. This group also develops publications to report trends in regional and national disease development to inform evaluations of soybean germplasm and chemical product efficacy screening. Impacts: Diseases in soybean can greatly impact yield potential. To facilitate data driven management recommendations, NCERA 137 participants performed research to address regionally significant diseases, conducted fungicide efficacy trials, and supported disease forecasting efforts. Research results were shared through extension programming (field days, grower meetings, publications, newsletter, blogs, YouTube videos, radio. and social media) to maximize effectiveness of disease management strategies and improve grower productivity and profitability.

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