SAES-422 Multistate Research Activity Accomplishments Report

Sections

Status: Approved

Basic Information

  • Project No. and Title: NCERA_old137 : Soybean Diseases
  • Period Covered: 10/01/2021 to 09/30/2022
  • Date of Report: 03/26/2023
  • Annual Meeting Dates: 02/28/2023 to 02/28/2023

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

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

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

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:

  • The program "SCN Root Check" generated 48.4M potential impressions in the fourth quarter of 2022.
  • Crop Scouting Basics for Corn and Soybean. Crop Protection Network. CPN 4007. doi.org/10.31274/cpn-20201214-0.
  • 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.
  • Crop Protection Network recommendations for Fungicide Efficacy for Control of Soybean Foliar Diseases. CPN 1019. doi.org/10.31274/cpn-20190620-014.
  • Crop Protection Network recommendations for Fungicide Efficacy for Control of Soybean Seedling Diseases. CPN 1020. doi.org/10.31274/cpn-20190620-015

 

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, 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. As of January 10, 2023, yield loss data has been reported by more than 80% of the states across the U.S.
  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.
  6. Milestones: In year 4 (10/1/21-9/30/22) 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.
  7. 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.

Publications

Publications:

  1. 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. https://doi.org/10.1002/csc2.20689
  2. 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.
  3. 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.
  4. 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
  5. Faske, T. R., Brown, K. J., and Kelly, J. 2022. Toxicity of tioxazafen to Meloidogyne incognita and Rotylenchulus reniformis. Journal of Nematology 54: e2022-1. https://doi.org/10.2478/jofnem-2022-0007
  6. Floyd, C.M. and Malvick, D.K. 2022. Diaporthe species associated with symptomatic and asymptomatic infection of soybean stems in Minnesota: identity, virulence and growth. Canadian Journal of Plant Pathology 44:858-873.
  7. Garcia-Aroca, T., Price, P., Solorzano, J. E., Galo, D., Sheffield, S. B., and Doyle, V. P.   Secondary metabolites produced by Xylaria necrophora are responsible for foliar symptoms associated with taproot decline of soybean.  Plant Health Progress 23:388-398.  https://doi.org/10.1094/PHP-03-22-0021-RS.
  8. 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.
  9. 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 https://doi.org/10.1094/PDIS-03-22-0527-RE
  10. Kelly, J., Bateman, N. R., Faske, T. R. 2022. Reproduction of Meloidogyne incognita on hybrid rice and survey of plant-parasitic nematodes in furrow-irrigated rice in Arkansas. Nematropica 52: 94-102.
  11. 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.
  12. 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.
  13. 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 Phytophthora sojae. Crop Protection 157: 105984 https://doi.org/10.1016/j.cropro.2022.105984
  14. McCoy, A.M., Noel, Z.A., Jacobs, J.L., Clouse, K.M., and Chilvers, M.I. 2022. Phytophthora sojae pathotype distribution and fungicide sensitivity in Michigan. Plant Disease 106:425-431 doi.org/10.1094/PDIS-03-21-0443-RE
  15. 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 106:2631-2637. https://doi.org/10.1094/PDIS-08-21-1836-RE.
  16. 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 Cercospora sojina from soybean fields in Wisconsin. Plant Health Progress. https://doi.org/10.1094/PHP-09-21-0115-BR.
  17. 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 Cercospora sojina. 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.
  18. 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 https://doi.org/10.1038/s43705-022-00103-w
  19. Olarte, R.A., Hall, R., Tabima, J.F., Malvick, D.K., and Bushley. K. 2022. Genetic diversity and aggressiveness of Fusarium virguliforme isolates across the Midwestern United States. Phytopathology 112:1273-1283.
  20. Pieros-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 Diseaseease. doi.org/10.1094/PDIS-08-22-1744-SR.
  21. 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.
  22. Pimentel, M.F., Srour, A.Y., Warner, A.J., Bond, J.P., Bradley, C.A., J.,   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.  2022.  Ecology and diversity of culturable fungal species associated with soybean seedling diseases in the Midwestern United States.  J. Appl. Microbiol. 132:3797-3811.
  23. Rodriguez-Herrera, K. D., V. P. Doyle, P. Price, G. B. Padgett, and S. Thomas-Sharma.   Aerial blight of soybean caused by Rhizoctonia solani AG1-IA:  A diagnostic guide.  Plant Health Prog.  In press.
  24. 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 Fusarium virguliforme to a succinate dehydrogenase inhibitor fluopyram. Pest Management Sci. 78:530-540 https://doi.org/10.1002/ps.6657
  25. 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.
  26. 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
  27. 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 Glycine max. Plant Disease 106:1183-1191. https://doi.org/10.1094/PDIS-09-21-1931-RE.
  28. 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.
  29. 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 Glycine max. Plant Disease https://doi.org/10.1094/PDIS-09-21-1931-RE.

Abstracts/Proceedings:

  1. Allen, T. W., P. Price, et al.   Southern United States soybean disease loss estimates for 2021.  Proc. So. Soybean Dis. Workers.  Pensacola, FL.  1-11.
  2. 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.
  3. 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.
  4. Barro, J., Del Ponte, E. M., and Bradley, C. A. 2022. Fungicide resistance of Phakopsora pachyrhizi in Brazil: an overview. Proceedings of the 10th International IPM Symposium, page 35. https://ipmsymposium.org/2022/Documents/IPM2022FullProgram.pdf.
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. 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).
  10. 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.
  11. 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).
  12. Galagedara, N. N., Doyle, V. P., Price, P., Robertson, C. L., Pavur, M., and Thomas-Sharma, S.   Elucidating the seasonal dynamics of Cercospora leaf blight on soybean for improved disease management.  Proc. Southern Soybean Dis. Workers.  Pensacola, FL.  21.
  13. Hamilton, R., Mccoy, A., Jacobs, J. L., Bennett, S., Kelly, H. M., Bradley, C. A., and Chilvers, M. 2022. Monitoring fluopyram sensitivity in Fusarium virguliforme. Phytopathology 112: S3.151.
  14. Kessler A.C. and Koehler A.M. 2022. Species diversity and aggressiveness of Diaporthe in Delaware and Maryland Soybean Production. Southern Soybean Disease Workers Conference, Pensacola, Fl.
  15. 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.
  16. 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.
  17. Neves, D., and Bradley, C. A. 2022. Presence of the G143A mutation in the cytochrome b gene in Corynespora cassiicola isolates collected from Kentucky soybean fields. Phytopathology 112:S3.165.
  18. Neves D. L., and Bradley C. A. 2022. Sensitivity of Cercospora sojina 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.
  19. Pate, S., and H. M. Kelly.   Tennessee soybean production and soil microbiota are affected by cover crops, burndown timings, and seed treatments.  Phytopathology, Vol. 112 (8), 5-5.
  20. Rodriguez, K., Thomas-Sharma, S., Doyle, V., and Price, P.   Development of a greenhouse protocol to screen soybean for aerial blight resistance.  Phytopathology.  112: S2.10.
  21. Rodriguez-Herrera, K., Doyle, V. P., Price, P., and Thomas-Sharma, S.   Evaluation of genetic diversity of Rhizoctonia solani AG1-1A to identify resistance in soybean.  Proc. Southern Soybean Dis. Workers.  22.
  22. 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.
  23. 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 Cercospora associated with Cercospora leaf blight of soybean. Proceedings of the 10th International IPM Symposium, page 34. https://ipmsymposium.org/2022/Documents/IPM2022FullProgram.pdf.
  24. Sureshbabu, B. M., Subramanian, S., Braun, N., Kontz, B., and Mathew, F. M. 2022. Effect of foliar fungicides on pathogenic fungal endophytes in soybean (Glycine max). American Phytopathological Society Annual Meeting, Pittsburgh, PA. August 2-6, 2022.
  25. Sureshbabu, B., Kontz, B., Webster, R. W., Singh, A., Smith, D., Wang, D., and Mathew, F. Evaluation of accessions for resistance to Diaporthe caulivora causing stem canker in soybean (Glycine max L.). SOY2022 (Virtual). August 22-23, 2022.
  26. 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 Diaporthe aspalathi, caulivora and D. longicolla causing soybean disease to azoxystrobin fungicide. American Phytopathological Society North Central Division Meeting, Lincoln, NE. June 21-23, 2022.
  27. Sureshbabu, B. M., Braun, N., Kontz, B., Subramanian, S., and Mathew, F. 2021. Evaluating the effect of fungicide on endophytes in soybean (Glycine max). The Bean Improvement Cooperative (BIC) and the North American Pulse Improvement Association (NAPIA) Annual Meeting (Virtual). November 2-4, 2021.

Extension and Outreach:

  1. Bish M (2022) Soybean Cyst Nematode: Out of Sight, Out of Mind. Mizzou Crop & Pest News. University of Missouri.
  2. Bissonnette K, Bish M, and Carraher M (2022) Top 3 emerging disease issues going into 2022. Mizzou Crop & Pest News. University of Missouri.
  3. 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.
  4. 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/
  5. 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/
  6. 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/
  7. 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.
  8. Doyle, V. P., Garcia-Aroca, T., Price, T., and Solorzano, J. E.   Building a framework for managing an emerging fungal disease of soybean.  LA Agric.  Winter 2022.  16-18.
  9. 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.
  10. 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"
  11. 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
  12. Chilvers, M., and McCoy, A. 2022. "Update on Phytophthora root rot management, Michigan Soybean Performance trial report.
  13. Chilvers, M., and McCoy, A. 2022. Scouting for Phytophthora and root rot diseases. Michigan Soybean News., June 2022
  14. Chowdhury, I., A., Yan, G., Halvorson, J., Thapa, A., Halvorson, M. and Markell, S. 2022. Soybean Cyst Nematode (SCN). NDSU Extension Publication PP1732.
  15. Conrad, A. and Telenko, D. E. P. 2022. Diseases of soybean: White Mold. Purdue Extension. BP-43-W (update).
  16. Henrickson M. and Koehler A.M. 2022. Soybean Vein Necrosis Virus. University of Delaware Factsheet.
  17. Henrickson M. and Koehler A.M. 2022. Cercospora Leaf Blight and Purple Seed Stain. University of Delaware Factsheet.
  18. Henrickson M. and Koehler A.M. 2022. Soybean Cyst Nematode. University of Delaware Factsheet.
  19. Henrickson M. and Koehler A.M. 2022. Septoria Brown Spot in Soybean. University of Delaware Factsheet.
  20. Henrickson M. and Koehler A.M. 2022. Frogeye Leaf Spot. University of Delaware Factsheet.
  21. Kessler A. and Koehler A.M. 2022. Nematode Soil Sampling in Soybeans. University of Delaware Factsheet.
  22. 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.
  23. Kessler A. and Koehler A.M. 2022. Seed treatments for management of soybean cyst nematode. University of Delaware Factsheet.
  24. Koehler A.M. Soybean seeding diseases and fungicide efficacy. Delaware Weekly Crop Update. 5.13.22
  25. Koehler A.M. Scouting for Soybean Cyst Nematode. Delaware Weekly Crop Update. 6.17.22
  26. Koehler A.M. Root knot nematode in field crops and vegetables. Delaware Weekly Crop Update. 7.8.22
  27. Koehler A.M. Soybean Updates. Delaware Weekly Crop Update. 7.22.22
  28. Koehler A.M. Diseases in Soybean. Delaware Weekly Crop Update. 9.2.22
  29. Koehler A.M. Soil Sampling for nematodes in soybean. Delaware Weekly Crop Update. 9.8.22
  30. Koehler A.M. 2022. Sorting out Soybean Diseases with Similar Foliar Symptoms. University of Delaware Factsheet.
  31. Lux, L., Halvorson, J., Hanson, B., Friskop, A., and Markell, S. Frogeye leaf spot of soybean. North Dakota Extension Publication PPXXXX (in press).
  32. 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.
  33. Mathew, F., Strunk, C., and Shires, M. 2022. Crop Hour: Soybean Cyst Nematode. September 20, 2022 (Virtual).
  34. Mathew, F. 2022. Isolate-genotype interaction for resistance to Diaporthe 2022 Virtual Soybean Breeders Workshop. February 14-16, 2022.
  35. Mathew, F. 2022. Evaluating the effect of foliar fungicides on fungal endophytes in soybean (Glycine max). Guest Seminar, Fusarium Working Group, Iowa State University, Ames, IA. February 8, 2022.
  36. 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.
  37. 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.
  38. 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.
  39. 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.
  40. NCERA-137. 2022. Fungicide Efficacy for Control of Soybean Foliar Diseases. CPN 1019. doi.org/10.31274/cpn-20190620-014.
  41. NCERA-137. 2022. Fungicide Efficacy for Control of Soybean Seedling Diseases. CPN 1020. doi.org/10.31274/cpn-20190620-015
  42. Padgett, B., P. Price, et al. 2019-2022.  Louisiana plant disease management guide cotton, field crop seed treatment, and soybean sections.  Online:  lsuagcenter.com."
  43. Price, P., Moseley, D., Padgett, G. B., and Chen, Z.   Status and latest research on managing soybean rust in Louisiana.  LA Agric.  Winter 2022.  14-15.
  44. Staton, M., and Chilvers, M. 2022. Prophylactic fungicides in soybean production. Michigan Soybean News
  45. Staton, M., and Chilvers, M. 2022. Fungicide use for white mold management in soybeans. Michigan Soybean News
  46. Staton, M., Chilvers, M., and Singh, M. 2022. Are soybean seed treatments profitable? Michigan Soybean News. Spring 2022, Volume 14 Issue 2.
  47. Shim, S. and Telenko, D. E. P. 2023. Applied Research in Field Crop Pathology for Indiana 2022. Purdue Extension."
  48. Smith, E., M. Zuefle, X. Wang, K. Wise, J. Degni, A. Gabriel, M. Hunter, J. Miller, K. O’Neil, M. Stanyard, and G. Bergstrom. 2022. Soybean cyst nematode in soybeans and dry beans: new research and renewed sampling efforts in 2022. What’s Cropping Up Volume 32 No. 4: https://blogs.cornell.edu/whatscroppingup/2022/09/09/soybean-cyst-nematode-in-soybeans-and-dry-beans-new-research-and-renewed-sampling-efforts-in-2022/
  49. 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.   Field Crop Budgets for 2022 (revision).  University of Tennessee Extension Department of Agricultural and Resource Economics Publication, D 33.
  50. 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.
  51. Sykes, V. R., R. H. Blair, H. M. Kelly, L. Schumacher, F. Palacios, S. B. Keadle, A. C. Thelin, and V. R. Pantalone.   Soybean Variety Tests in Tennessee 2022.  UT Extension, PB 1889.
  52. Traverso E. and Koehler A.M. 2022. Root-Knot Nematode in Soybean. University of Delaware Factsheet.
  53. 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.
  54. 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
  55. Zaworski, E. (Host) and Sikora, E. (Interviewee). Rust Can’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
  56. 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
  57. 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
  58. 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
  59. 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
  60. 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
  61. 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
  62. 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

Book Chapters

  1. 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.
  2. 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.

 

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