SAES-422 Multistate Research Activity Accomplishments Report

Sections

Status: Approved

Basic Information

  • Project No. and Title: NCERA_old137 : Soybean Diseases
  • Period Covered: 10/01/2020 to 09/30/2021
  • Date of Report: 08/23/2022
  • Annual Meeting Dates: 06/20/2022 to 06/21/2022

Participants

2022-NCERA-137-State-Updates-(1).pdf
2022-NCERA-137-meeting-minutes_Final.docx

Accomplishments

Accomplishments:

Short-term outcomes: Continued collaborative efforts of the NCERA 137 multi-state working group are advancing soybean disease management recommendations.

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:

  • Crop Protection Network recommendations for Fungicide Efficacy for Control of Soybean Diseases org/10.31274/cpn-20190620-014
  • Soybean yield loss estimates due to diseases in the United States and Ontario, Canada from 2015 to 2019. https://doi.org/10.1094/PHP-01-21-0013-RS
  • Meta-analysis of soybean yield response to foliar fungicides evaluated from 2005 to 2018 in the United States and Canada. https://doi.org/10.1094/PDIS-07-20-1578-RE.
  • Management of SCN and SDS with nematode-protectant seed treatments across multiple environments (manuscript in preparation)

Activities: NCERA 137 works under five primary objectives:

  • 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.

Project participants work on diverse systems including pathotype diversity of P. sojae, QoI-resistant Cercospora sojina, 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.

  • Objective 2. Coordinate soybean yield loss estimates caused by diseases across the soybean producing region.

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.

  • Objective 3.Compare data from studies of the ecology, epidemiology and management of soybean diseases.

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 Fusarium virguliforme 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.

  • Objective 4. Improve knowledge transfer about soybean diseases and their management to researchers, Extension personnel, farmers and agribusinesses.

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.  

  • Objective 5.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.

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 C. sojina.

Milestones: 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.  

Impacts

  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.
  2. SD: Outreach and extension activities were carried out to inform growers, crop consultants and agronomists on soybean diseases and their management (see extension publications). Awareness and free SCN testing was offered for growers in South Dakota. A grant was secured from the South Dakota Soybean Research and Promotion Council to pay for the SCN testing. SDSU Extension produced a weekly crop and pest newsletter throughout the growing season and produces a monthly newsletter the remainder of the year which provides timely and up-to-date information on diseases to watch for or seen in the state and their management. A Crop Hour Webinar series was held during the months of January-March and focused on different crops each week for 8 weeks for an hour a day (3 days a week) focusing on different issues. Soybean disease identification and management was focused on during both private and commercial applicator trainings. There were 4 live webinars held for Private Applicators and there were 5 live in-person trainings held for Commercial Applicators. An on-line Training House module was developed for learn at your own pace and time with an emphasis on soybean disease identification and management section and a section focused on fungicide resistance and frogeye leaf spot. Research field days were held were held both in-person (limited locations) and virtually which gave the producers the opportunity to choose which way they were comfortable attending. An agronomy booth with an emphasis on soybean disease management was available during the Sioux Falls Farm Show and at Dakota Fest.
  3. NY: Overall soybean diseases occurred in New York at average to below average incidence and severity in 2021. Late season diseases, such as Phomopsis seed decay and purple seed stain, affected seed quality and were a concern for export markets. White mold was generally less severe than predicted by weather models. Soybean cyst nematode was confirmed in six additional counties in 2021, bringing the total to 36 confirmed counties. Egg counts were generally low but there were a handful of soil samples with moderate to high populations. In collaboration with the University of Kentucky, resistance to QoI fungicides in isolates of Cercospora sojina was demonstrated for the first time in New York. Information exchange with NCERA-137 members remains the primary source for updating extension disease management recommendations in New York.
  4. ND: The NCERA 137 makes possible (or improves) our ability to coordinate impactful programs and disseminate critical information to growers in North Dakota. As examples, NDSU manages a statewide SCN survey program for growers (about 700 samples submitted annually). The early identification of SCN has been estimated to be saving ND soybean growers millions of dollars annually. ND has taken the leadership role in The SCN Coalition, whose efforts are have been estimated to be saving growers $100M+ dollars. NDSU has partnered with other universities to monitor distribution, virulence and/or fungicide sensitivity to several pathogens, including but not limited to; Cercospora sojina, Heterodera glycines and Fusarium viruliforme
  5. MI: The NCERA137 meeting is an opportunity to discuss and network with fellow soybean pathologists across the US. Through these multistate connections we have coordinated research and extension efforts that enable us to use resources efficiently. Examples include the coordinated white mold, SDS Pythium and Phytophthora research and extension projects and their associated outputs. But, also extends to soybean production, disease and disorder discussions which help us stay informed as we work together to bring disease management solutions to our farmers and industry.
  6. MO: Bissonnette et al. found that no seed treatment stood out compared to others when evaluating for control and management of SCN. The study compared five biological seed treatments and two chemical seed treatments to appropriate non-treated controls. Experiments were conducted across 14 North America geographies and equaled 51 site years of data. ILeVO provided more consistent control over the broad range of environments when compared to Saltro. This information is directly relevant to managing SCN in Missouri.
  7. MN: My involvement in NCERA-137 has impacted management of soybean diseases in Minnesota in at least three main ways. First, information sharing at the annual meeting and outside of the meeting has been valuable to improve understanding of soybean diseases and their management. Second, collaborative research projects conducted across the NC Region have yielded very useful information for managing multiple soybean diseases. Many of these projects are planned and discussed at the NCERA-137 meeting.
  8. KY: Through collaborative efforts of members of NCERA 137, QoI-fungicide resistant strains of Cercospora sojina have now been identified across 22 states. Identification of these fungicide-resistant strains of C. sojina, has helped the soybean industry better understand the importance of utilizing he best fungicide resistance management practices, and have helped farmers and others understand the best management practices for frogeye leaf spot control.
  9. LA: Involvement with NCERA 137 provides a venue for information exchange and incite on emerging diseases, management strategies, and potential for collaborative research. Results from Louisiana soybean disease management programs are used to develop recommendations and management strategies for our stakeholders. This information is disseminated through local, state, regional, and national meetings/venues.
  10. IN: The Purdue Field Crop Pathology Extension program provided up-to-date information on field crop diseases and their management. Over 24 Extension presentations on soybean disease management were given to over 3539 people in 2021. These included Diagnostic Training Center (DTC) events that addressed participants about field crop disease and awareness about SCN and management.
  11. AL: We converted two soybean sentinel plots (Brewton, Tallassee) into fungicide strip demonstrations trials to show benefits of a well-timed fungicide applications for soybean rust. Results indicated a single fungicide application increased yield by 20 and 15%, respectively. These demonstrations were highlighted on twitter and in the Alabama Crops Report Newsletter.
  12. NE: Outreach from this program has impacted the management of soybean diseases in Nebraska by connecting producers and agricultural influencers to information about important yield diminishing plant pathogens in their fields. This prepares them for effective decision making when it comes time to manage potential pathogen problems.
  13. OH: Data and results from variety, foliar fungicide, and seed treatment trials are shared with members of NCERA 137. This generates a very informative factsheets for timely recommendation which are a great tool for researcher, crop consultant, extension agents, etc.
  14. WI: My program gave 11 presentations in the form of field days, virtual meetings/webinars, and in-person events. Total direct contacts for these events where 1,357. My program also generated 9 YouTube videos on information relevant to soybean disease management.
  15. KS: The NCERA137 meeting was critical in my first year of this position to learn from other soybean researchers . Much of the information that was shared was later incorporated into research and extension activities in Kansas.
  16. AR: Provide information on susceptibility of MG 4 and 5 soybean to Southern RKN. This is often used by farmers from Indiana to Louisiana and Texas to Mississippi.
  17. TN: Continued efforts among colleagues to share information disease management and emerging issues
  18. VA: I gained valuable information on the isolation and culture of Fusarium virguliforme.
  19. 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.

Publications

Publications:

Refereed Journal Articles:

  1. 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 Fusarium virguliforme temporal colonization of corn, tillage, and residue management on soybean sudden death syndrome and soybean yield. Plant Disease. 105: 3250–3260. https://doi.org/10.1094/PDIS-09-20-1964-RE.
  2. 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
  3. 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.
  4. 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
  5. 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
  6. 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. https://doi.org/10.1094/PHP-11-20-0097-RS.
  7. 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 https://doi.org/10.1094/PHP-08-20-0068-RS.
  8. Chang, H.-X., Noel, Z.A., Chilvers, M.I. 2021. A β-lactamase Gene of Fusarium oxysporum Alters Rhizosphere Microbiota of Soybean. The Plant Journal 106, 1588–1604 doi: 10.1111/tpj.15257
  9. Chowdhury, R. N., Okello, P. N., and Byamukama, E. 2022. Examining the interaction between Phytophthora sojae and soybean cyst nematode on soybean (Glycine max). Plants. 11(4): 560. https://doi.org/10.3390/plants11040560
  10. 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 Pythium Species in Soybean. Frontiers in Plant Science. doi.org/10.3389/fpls.2021.644746
  11. 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 https://doi.org/10.1002/csc2.20689
  12. 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
  13. 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 Rhizoctonia zeae from soybean and corn in Nebraska. Plant Health Progress 22:465-469. https://doi.org/10.1094/PHP-11-20-0100-SYN.
  14. Hassan MK, Lawrence KS, Sikora EJ, Liles MR, Kloepper JW. Enhanced biological control of root-knot nematode, Meloidogyne incognita, 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
  15. 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 Phytophthora sojae 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.,
  16. 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. https://doi.org/10.1094/PHP-07-20-0062-RS.
  17. 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: https://doi.org/10.1094/PDIS-07-20-1578-RE.
  18. 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. https://doi.org/10.1094/PHP-10-21-0130-BR.
  19. 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 Phytophthora sansomeana. TAAG 134:1977–1987 https://doi.org/10.1007/s00122-021-03799-x
  20. Matthiessen-Anderson, R.A. Schmidt, C., Geisler, L. and Robertson, A.E. 2021. Comparison of pathotype diversity of Phytophthora sojae recovered from Iowa and Nebraska. Plant Health Progress 22:300-308 doi/10.1094/PHP-02-21-0016-FI.
  21. Matthiessen-Anderson, R.A. Schmidt, C. and Robertson, A.E. 2021. Comparison of baiting methods to recover Phytophthora sojae from soil samples. Plant Health Progress 22:316-322 doi/10.1094/PHP-02-21-0040-FI.
  22. Matthiesen-Anderson, R.A. and Robertson, A.E. 2021. Comparison of aggressiveness and fungicide sensitivity of four Pythium spp. that cause damping-off of soybean in the United States. Canadian Journal of Pl. Path. doi.org/10.1080/07060661.2021.1881162
  23. 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 Sclerotinia sclerotiorum oxaloacetate acetylhydrolase using bean pod mottle virus as a vehicle reduces disease on soybean. Frontiers in Plant Science-Plant Pathogen Interactions. https://doi.org/10.3389/fpls.2021.677631.
  24. McCoy, A.M., Noel, Z., Jacobs, J., Clouse, K., Chilvers, M.I. accepted June 28, 2021. Phytophthora sojae pathotype distribution and fungicide sensitivity in Michigan. Plant Disease doi.org/10.1094/PDIS-03-21-0443-RE
  25. 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 Phytophthora sojae. Crop Protection
  26. 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.
  27. 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.
  28. 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
  29. 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 Cercospora sojina. Plant Health Progress. https://doi.org/10.1094/PHP-10-21-0132-BR.
  30. Neves, D. L., Wang, A., Weems, J. D., Kelly, H. M., Mueller, D. S., Farman, M., and Bradley, C. A. 2022. Identification of Septoria glycines isolates from soybean with resistance to quinone outside inhibitor fungicides. Plant Disease. https://doi.org/10.1094/PDIS-08-21-1836-RE.
  31. 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 Cercospora sojina from soybean fields in Wisconsin. Plant Health Progress. https://doi.org/10.1094/PHP-09-21-0115-BR.
  32. Neves, D. L., and Bradley, C. A. 2021. Baseline sensitivity of Cercospora sojina and Corynespora cassiicola to pydiflumetofen. Crop Protection 147:105461. https://doi.org/10.1016/j.cropro.2020.105461.
  33. 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. https://doi.org/10.1016/j.biocontrol.2020.104424.
  34. 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 [Glycine max (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
  35. 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, 1–15 https://doi.org/10.1111/jam.15507
  36. 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 Pythium damping-off in soybean by biocontrol seed treatment. Plant Disease. https://doi.org/10.1094/PDIS-06-21-1313-RE.
  37. 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).
  38. 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 https://doi.org/10.3390/agronomy11091785.
  39. 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 & 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 Cercospora sojina to demethylation inhibitor and methyl benzimidazole carbamate fungicides. Crop Protection 149:105765. https://doi.org/10.1016/j.cropro.2021.105765.
  40. 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 Fusarium virguliforme to a succinate dehydrogenase inhibitor fluopyram. Pest Management Science https://doi.org/10.1002/ps.6657
  41. Shao, D.D., Smith, D.L., Kabbage, M., and Roth, M. 2021. Effectors of plant necrotrophic fungi. Frontiers in Plant Science-Plant Pathogen Interactions. https://doi.org/10.3389/fpls.2021.687713.
  42. Sharma, P., Malvick, D.K, and Chanda, A. 2021. Sensitivity of Rhizoctonia solani AG 2-2 isolates from soybean and sugar beet to selected SDHI and QoI fungicides. Plant Disease 105:3573-3579.
  43. 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 Glycine max. Plant Disease DOI:10.1094/PDIS-09-21-1931-RE
  44. 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 (Glycine max) check lines for evaluating genetic resistance to Sclerotinia stem rot. Plant Disease. 105: In press. https://doi.org/10.1094/PDIS-10-20-2193-RE.
  45. 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. https://doi.org/10.3389/fpls.2021.651716.
  46. Zambrana-Echevarría, 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. https://doi.org/10.1094/PHYTOFR-11-20-0036-R.

 

Abstracts/Proceedings:

  1. 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.
  2. 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
  3. 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.
  4. 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 Sclerotinia sclerotiorum from U.S. soybean and dry bean, and from different regions and climates using AmpSeq. APS Plant Health 2021.
  1. 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 Sclerotinia sclerotiorum from USA soybean and dry bean, compared to different regions and climates. APS Plant Health 2021.
  2. Galagedara, N., Doyle, V., Price, P., Robertson, C. L., Thomas-Sharma, S. 2021. Comparing the efficiency of spore traps to capture airborne inoculum of Cercospora spp., on soybean. Phytopathology 111: S2.28.
  3. Ingram, J., Dangal, N. K., Braun, N., Kontz, B., and Mathew, F. M. 2021. Impact of phosphorus and potassium fertilizers on endophytic Fusarium spp. in soybean. American Phytopathological Society Annual Meeting (Virtual). August 2-6, 2021.
  4. Just B and Bissonnette K (2021) Assessing Missouri soybean fields for fungicide-resistant Cercospora sojina. Proc. So. Soybean Dis. Workers.
  5. Kessler A.C. and Koehler A.M. 2021. Survey of Nematodes in Delaware and Maryland. Nematodes in Atlantic Soybeans Production Webinar.
  6. Kessler A.C. and Koehler A.M. 2021. Characterization and management of Soybean Cyst Nematode in Mid Atlantic soybeans. APS Potomac Division Meeting, Virtual.
  7. Kessler A. and Koehler A.M. 2021. Two-year survey of Diaporthe species in soybean across Delaware and Maryland. APS National Meeting, Virtual.
  8. 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 Rhizoctonia solani AG1-IA. Phytopathology 111: S2.23.
  9. Sikora, E. J. and K. Conner. 2021. Observations from Soybean Rust Monitoring & Fungicide Field Demonstrations in Alabama in 2020. Proceeding of the Southern Soybean Disease Workers Annual Meeting. Page 21-22.
  10. Smith, D.L. 2021. Let’s talk: Using fungicides on corn and soybeans and how to maximize ROI. Proceedings of the 2021 Wisconsin Agribusiness Classic. Vol 5:42.
  11. Sureshbabu, B. M., Braun, N., Kontz, B., Subramanian, S., and Mathew, F. 2021. Evaluating the effect of fungicide on endophytes in soybean (Glycine max L.). The Bean Improvement Cooperative (BIC) and the North American Pulse Improvement Association (NAPIA) Annual Meeting (Virtual). November 2-4, 2021.
  12. 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.
  13. Viviana Ortiz Londono, Hao-Xun Chang, Hyunkyu Sang, Kiersten A. Wise and Martin Chilvers Potential adaptive genetic variation in Macrophomina phaseolina as revealed by environmental association on the whole-genome data APS Plant Health 2021.
  14. 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.
  15. Zachary A. Noel, Reid Longley, Gian Maria Niccolò Benucci, Martin Chilvers, Dr. Frances Trail and Gregory Bonito, Non-target fungicidal effects in the corn and soybean microbiome. APS Plant Health 2021.
  16. Zachary A. Noel, Reid Longley, Gian Maria Niccolò Benucci, Martin Chilvers, Dr. Frances Trail and Gregory Bonito, Non-target fungicidal effects in the corn and soybean microbiome Mycological society of America.

 

Extension and Outreach:

  1. Barizon J and Bissonnette K (2021) Harvest is the Perfect Time for Checking Your Field for SCN. Mizzou Crop & Pest News: https://ipm.missouri.edu/cropPest/2021/10/scnNumber-KB/ Bissonnette (20210.) 
  2. 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].
  3. Bartels, M., Broderick, K., and Jackson-Ziems, T. A. 2021. Managing SCN Starts Now. CropWatch Newsletter. March 19, 2021. Nebraska Extension. [I W] https://cropwatch.unl.edu/2021/managing-soybean-cyst-nematode-starts-now.
  4. 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] https://cropwatch.unl.edu/2021/sample-soybean-cyst-nematode-fall.
  5. 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.
  6. Bish M (2022) Soybean Cyst Nematode: Out of Sight, Out of Mind? Mizzou Crop & Pest News: https://ipm.missouri.edu/cropPest/2022/4/soybeanCystNematode-MB/.
  7. Bissonnette K, Bish M, and Carraher M (2022) Top 3 Emerging Diseases Going into 2022. Mizzou Crop & Pest News: https://ipm.missouri.edu/cropPest/2022/3/emergingDisease-KB/.
  8. 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/.
  9. Bradley, C. 2021. Red crown rot of soybean observed for the first time in Kentucky. Kentucky Pest News. https://kentuckypestnews.wordpress.com/2021/09/21/red-crown-rot-of-soybean-observed-for-the-first-time-in-kentucky/.
  10. Bradley, C. 2021. Management of soybean cyst nematode starts with soil sampling this Fall or Spring. Kentucky Pest News. https://kentuckypestnews.wordpress.com/2021/09/14/management-of-soybean-cyst-nematode-starts-with-soil-sampling-this-fall-or-spring-4/.
  11. Bradley, C. 2021. Foliar fungicide consideration for soybean. Kentucky Pest News. https://kentuckypestnews.wordpress.com/2021/07/13/foliar-fungicide-considerations-for-soybean-3/.
  12. Bradley, C. 2021. It's time to sample for soybean cyst nematode in your fields. Kentucky Pest News. https://kentuckypestnews.wordpress.com/2021/04/13/its-time-to-sample-for-soybean-cyst-nematode-in-your-fields/.
  13. 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.
  14. 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.
  15. 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.
  16. 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.
  17. 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.
  18. Byamukama, E. Strunk, C., and Tande, C. 2021. Charcoal and Fusarium rots observed in early senescing soybean plants. SDSU Extension; Published August 2021.
  19. Byamukama, E., Strunk, C., and Mathew, F. 2021. Be aware of fungicide resistance in field crops. SDSU Extension; Published August 2021.
  20. Byamukama, E., Strunk, C., and Mathew, F. 2021. Stem canker developing in some soybean fields. SDSU Extension; Published August 2021.
  21. Byamukama, E. and Strunk, C. 2021. Bacterial blight developing in some soybean fields. SDSU Extension; Published July 2021.
  22. Byamukama, E., Varenhorst, A., Strunk, C., Rozeboom, P., and Wagner, P. 2021. Monitor soybean for bean leaf beetle activity. SDSU Extension; Published July 2021.
  23. Byamukama, E., Strunk, C., Clark, J., and Bly, A. 2021. What is causing soybeans to yellow at this time? SDSU Extension; Published July 2021.
  24. Byamukama, E., Strunk, C., and Tande, C. 2021. Drought conditions may increase SCN population in the soil. SDSU Extension; Published July 2021.
  25. 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
  26. Chowdhury, I., A., Yan, G., Halvorson, J., Thapa, A., Halvorson, M. and Markell, S. 2022. Soybean Cyst Nematode (SCN). NDSU Extension Publication PP1732.
  27. 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.
  28. 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.
  29. Faske, T. R., Mueller, J., Thiessen, L. (2021). Root-Knot Nematodes (August 26, 2021, ed.). Crop Protection Network. http://doi.org/10.31274/cpn-20210820-2.
  30. 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.
  31. Jackson-Ziems, T. A. 2021. Midseason Disease Management Tips. Nebraska Soybean Board. Summer 2021. P. 25. [I W] https://nebraskasoybeans.org/wp-content/uploads/2021/07/SoybeaNebraska-Summer-FY21-web-ready-version.pdf.
  32. 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.
  33. 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.
  34. Koehler A.M. Scouting for Soybean Cyst Nematodes. Delaware Weekly Crop Update. 6/4/21.
  35. Koehler A.M. Resources for 2021 Corn and Soybean Fungicide Recommendations. Delaware Weekly Crop Update. 6/18/21.
  36. Koehler A.M. Soybean Disease Updates. Delaware Weekly Crop Update. 7/30/21.
  37. Koehler A.M. Field Crop Disease Updates. Delaware Weekly Crop Update. 8/6/21.
  38. Koehler A.M. Soil Sampling for Nematodes in Soybeans. Delaware Weekly Crop Update. 9/10/21.
  39. 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] https://nebraskasoybeans.org/wp-content/uploads/2021/04/367728-NE_Soybean_Assoc-Magazine_Spring_2021_LoRes-2.pdf.
  40. 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.
  41. 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). 
  42. 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).
  43. 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.
  44. Piñeros-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.
  45. Piñeros-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.
  46. 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. 
  47. 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. 
  48. 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].
  49. 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.
  50. 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.
  51. Shim, S. and Telenko, D. 2022. Applied Research in Field Crop Pathology for Indiana 2021. Jan 2022. Purdue Extension.BP-217-W.
  52. Sikora, E. Seedling diseases of soybeans. Alabama Crops Report. 2/16/21.
  53. Sikora, E. 2021. Soybean disease update. Alabama Crops Report. 7/20/21.
  54. Sikora, E. 2021. Southern rust on the move in south Alabama. Alabama Crops Report. 7/20/21.
  55. Sikora, E. Frogeye leaf spot detected on soybeans in Brewton, AL. Alabama Crops Report. 8/3/21.
  56. Sikora, E. Soybean rust detected in Conecuh, Dale, Henry, and Pike counties. Alabama Crops Report. 8/3/21
  57. Sikora, E. 2021. Keep an eye out for taproot decline. Alabama Crops Report. 8/17/21.
  58. Sikora, E. 2021. Taproot decline emerging as a new problem for Alabama soybean growers. Alabama Crops Report. 9/14/21.
  59. Sikora, E. 2021. Soybean rust in 2021. Alabama Crops Report. 9/28/21.
  60. Sikora, E. 2021. Soil sampling in the fall is a good time to detect nematode problems in soybeans. Alabama Crops Report. 10/14/21.
  61. Sikora, E. 2021. Results from fungicide trials for soybean rust management at Fairhope, AL. Alabama Crops Report. 12/16/21.
  62. 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/.
  63. Smith, D.L. 2021. Wisconsin soybean and corn disease update. Jul. 7. Wisconsin Crop Manager. https://ipcm.wisc.edu/blog/2021/07/14290/.
  64. 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/.
  65. 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/.
  66. 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/.
  67. Telenko, D. 2021. Foliar disease update in Indiana corn and soybean. Purdue Extension. Pest and Crop Newsletter. Issue 2021.17.
  68. Telenko, D. 2021. Update on disease risk in soybean and corn in Indiana. Purdue Extension. Pest and Crop Newsletter. Issue. 2021.16.
  69. 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].
  70. 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.
  71. Effect of cover crop and seed treatment on stand establishment in corn, cotton, and soybeans. Louisiana Agriculture.
  72. Louisiana Plant Pathology Disease Identification and Management Series: Taproot Decline of Soybean. 2021, LSU AgCenter Publication No. 3802.
  73. Missouri Soybean Disease Guide. Published by Missouri Soybean Merchandising Council. https://mosoy.org/wp-content/uploads/2021/03/59934-21-MO-Disease-Guide.pdf.
  74. Frogeye leaf spot https://www.canr.msu.edu/news/fungicide-resistance-in-frogeye-leaf-spot-of-soybean-in-michigan.
  75. Variety selection is critical for disease management. Austin McCoy and Martin Chilvers. Michigan Soybean News Vol 13 Iss 4. Fall 2021.
  76. Scout corn and beans for foliar diseases Janelle Brose, Farm News Media https://www.michiganfarmnews.com/video-scout-corn-and-beans-for-foliar-diseases.
  77. Tar spot and SCN – Nicole Heslip. Brownfield Ag News. July 23, 2021.
  78. Managing soybean diseases with foliar fungicide applications. Chilvers M., and Staton, M. July 14, 2021 https://www.canr.msu.edu/news/managing-soybean-diseases-with-foliar-fungicide-applications.
  79. Time to scout for SCN females and other associated plant diseases by Julianne Johnston. The SCN Coalition. July 13, 2021.
  80. Boosting Soybean Resistance to Fight Phytophthora Stem and Root Rot. Soybean Research Information Network article by Carol Brown. July 6, 2021 https://soybeanresearchinfo.com/research-highlight/boosting-soybean-resistance-to-fight-phytophthora-stem-and-root-rot/?utm_term=&utm_campaign=SRIN%202021&utm_medium=email&_hsmi=137298094&_hsenc=p2ANqtz-8332er2EgQoaoux4EURIlAAm3CsxpkbFqgz_rZ712PWUN1f8PFc5ASQxN_aI8v6j9P_Dm2ejbYTf_rhfr6urJJA3-vNw&utm_content=137298094&utm_source=hs_email.
  81. Time to Scout for SCN Females and Other Associated Plant Diseases. The SCN Coalition.

 

Book Chapters

  1. 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. 
  2. 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.
  3. 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.
  4. 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.
  5. 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.
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