SAES-422 Multistate Research Activity Accomplishments Report

Status: Approved

Basic Information

Participants

• Bob Koch (President), University of Minnestoa, koch0125@umn.edu • Louis Hesler (Secretary), USDA-ARS, Brookings, SD, louis.hesler@ars.usda.gov • Fred Musser (Local Arrangements), MS State University, fm61@msstate.edu • Dominic Reisig (Past President), North Carolina St. Univ., ddreisig@ncsu.edu • Julien Beuzelin, LSU Ag Center, JBeuzelin@agcenter.lsu.edu • Sebe Brown, LSU Ag Center, SBrown@agcenter.lsu.edu • Carolina Camargo, Univ. of Nebraska-Lincoln, caro.camargo@yahoo.es • Angus Catchot, Mississippi State University, acatchot@ext.msstate.edu • Don Cook, Mississippi State University, dcook@drec.msstate.edu • Jeff Davis, LSU Ag Center, JeffDavis@agcenter.lsu.edu • Tom Hunt, Univ. of Nebraska-Lincoln, thunt2@unl.edu • David Kerns, LSU Ag Center, DKerns@agcenter.lsu.edu • Rogers Leonard, LSU Ag Center, RLeonard@agcenter.lsu.edu • Lia Marchi Werle, Univ. of Nebraska-Lincoln, lia.marchi@huskers.unl.edu • Matt O'Neal, Iowa St. University, oneal@iastate.edu • Matheus Ribiero, Univ. of Nebraska-Lincoln, marcus.ribiero@huskers.unl.edu • Kelley Tilmon, South Dakota St. Univ., Kelley.tilmon@sdstate.edu • Suhas Vyavhare, Texas A&M University, suhas.vyavhare@yahoo.com • Jake Wenger, The Ohio State University, wenger.93@osu.edu

The 2016 S1055 meeting will be held in Raleigh, NC on Sunday, 13 March (9 am to 5 pm) and Monday, 14 March (1 pm to 5 pm) and will be coordinated to mesh with the 2016 South Eastern Branch meeting, which is planned for 13-16 March 2016. Dominic Reisig is involved with local arrangements for the branch meeting and kindly agreed to assist with local arrangements for S1055. The group expressed interest to have more involvement in the meetings from industry, governmental organizations (e.g., EPA), non-governmental organizations, and others. There will be an attempt to foster this sentiment by holding a S-1055-centered symposium in which speakers from these groups will be invited to speak and attend on Monday afternoon of the meeting. Discussion indicated that incumbent members of S-1055 will likely also be speakers at the symposium. There will also be efforts to make personnel from these various groups aware of S-1055 activities so that they may become more involved with S-1055. Members expressed a desire that the symposium speakers address pest resistance management issues.

Julien Beuzelin was nominated and graciously accepted to serve as secretary for 2015.  Mary Purcell is the Federal NIFA representative.

S1055 is sound as a multistate project. Project revisions are performed every 5 years; next revision will occur in 2017. 

Accomplishments

Accomplishments of the S1055 working group have led to improved pest management practices for several soybean insects including soybean aphid, kudzu bug, a complex of stink bugs, and various defoliators. The accomplishments include several activities and outputs over the past year.

The group completed two multistate studies regarding management practices for soybean insect pests. One multistate study determined that an IPM approach to soybean aphid management (scout/threshold) provided a greater probability of a much higher financial return than neonicotinoid seed treatment. Another multistate study found that a Rag1 + Rag2 pyramid is as effective as an insecticide for controlling soybean aphid. Both of these findings have been conveyed to producers at various meetings. Both studies were with funding from and in conjunction with the North Central Regional soybean Project.

S1055 researchers from multiple states have also documented the spread and economic impact of exotic stink bugs and kudzu bug, throughout various soybean-producing states. Kudzu bug distribution data are now linked through a University of Georgia-hosted website to create a national distribution map (http://www.kudzubug.org/distribution_map.cfm).

S1055 scientists evaluated insecticide performance against soybean pests, including ways to reduce the number of insecticide applications and to minimize their impact on beneficial insects. These evaluations generated numerous summary reports of efficacy and yield response that are available through individual state extension programs. Researchers in several states have also generated information on baseline susceptibilities of various pests that will be useful in monitoring for and determining levels of insecticide resistance.

As alternatives to insecticides, S1055 scientists have also conducted numerous lab and field studies to evaluate the effects of host-plant resistance, natural enemies, and various tillage practices on insect pest levels.

Information and technology regarding soybean insect pest management were transferred through numerous educational meetings and field days in the various states for growers, crop consultants, pest management practitioners, scientists, and other stakeholders.

Outputs: Scientists published 17 articles and developed numerous extension publications on soybean insect pests in the past year (see list below). Members of the group transfer information from these publications by regularly holding educational meetings and field days on soybean insect pests for growers, crop consultants, pest management practitioners, and other scientists.

Impacts

  1. • S-1055 completed multi-state studies that may decrease the use of seed treatments and foliar insecticides for soybean aphid management in north-central states.
  2. • An IPM approach to soybean aphid management (scouting and action thresholds) provided a greater probability of a financial return than use of a preventative neonicotinoid seed treatment.
  3. • A pyramid of host plant resistance genes (Rag1 + Rag2) was equally effective as insecticide treatments for controlling soybean aphid.
  4. • The viability of non-chemical approaches to soybean aphid management will likely reduce the amount of pesticide in the environment.

Publications

  • Bhusal, S.J., Jiang, G., Hesler, L.S., Orf, J.H. 2014. Soybean aphid resistance in soybean germplasm accessions of maturity group I. Crop Sci. 54:2093-2098. doi:10.2135/cropsci2014.03.0205.
  • Cox, R., O'Neal, M., Hessel, R., Schulte, L.A., Helmers, M. 2014. The impact of prairie strips on aphidophagous predator abundance and soybean aphid predation in agricultural catchments. Environ. Entomol. 43:1185-1197.
  • Gill, K.A., Cox, R., O'Neal, M.E. 2014. Quality over quantity: Buffer strips can be improved with select native plant species. Environ. Entomol. 43: 298-311.
  • Herbert, D.A. 2014. The Virginia Ag Crop and Pest Advisory blog and MailChimp delivered advisory. http://blogs.ext.vt.edu/ag-pest-advisory/.
  • Herbert, D.A., Jr., K. Kamminga, S. Malone, T. P. Kuhar, E. Day, J. Greene, C.S. Bundy, L. Brown, and P. Ellsworth. 2014. Field Guide to Stink Bugs of Agricultural Importance in the United States. Northeastern Integrated Pest Management Center. Virginia Cooperative Extension. VT/0914/444356/ENTO-68. https://pubs.ext.vt.edu/444/444-356/444-356.html.
  • Herbert, D.A., S. Malone, M. Arrington, and R. Whalen. 2014. 2013 Insect Pest Management In Virginia Cotton, Peanut, Soybean, and Sorghum. AREC-61NP. https://pubs.ext.vt.edu/AREC/AREC-61/AREC-61.html.
  • Hesler, L.S. 2013. Efficacy of inorganic compounds against soybean aphid, laboratory tests 2012. Arthropod Management Tests. 38:F82. doi: 10.4182/amt.2013.M1.
  • Hesler, L.S. 2014. Inventory and assessment of foliar natural enemies of the soybean aphid (Hemiptera: Aphididae) in South Dakota. Environ. Entomol. 43:577-588.
  • Hodgson, E.W., Sisson, A.J. 2014. "Predicted Mortality of Bean Leaf Beetle Is Highest in 25 years." Integrated Crop Management News. Paper 62. http://lib.dr.iastate.edu/cropnews/62.
  • Koch, R.L. and B. Potter. 2014. Scouting for soybean aphid. University of Minnesota Extension. (http://z.umn.edu/soybeanaphidscouting).
  • Marchi-Werle, L., T. M. Heng-Moss, T. E. Hunt, E.L.L. Baldin, L.M. Baird. 2014. Characterization of Peroxidase Changes in Tolerant and Susceptible Soybeans Challenged by Soybean Aphid (Hemiptera: Aphididae). J. Econ. Entomol. 107:1985-1991. http://www.bioone.org/doi/full/10.1603/EC14220.
  • McCarville, M.T., O'Neal, M.E., Potter, B.D., Tilmon, K.J., Cullen, E.M., McCornack, B.P., Tooker, J.F., Prischmann-Voldseth, D.A. 2014. One gene versus two: A regional study on the efficacy of single gene versus pyramided resistance for soybean aphid management. (2014) Journal of Economic Entomology, 107:1680-1687.
  • McCarville, M.T., Soh, D.H., Tylka, G.L., O'Neal, M.E. 2014. Aboveground feeding by soybean aphid, Aphis glycines, affects soybean cyst nematode, Heterodera glycines, reproduction belowground. PLoS ONE 9 (1), art. no. e86415.
  • Philips, C.R., T.P. Kuhar, M.P. Hoffmann, F.G. Zalom, R. Hallberg, D.A. Herbert, C. Gonzales, S. Elliott. 2014. Integrated Pest Management. In: LS. John Wiley & Sons. Chichester. DOI: 10.1002/9780470015902.a0003248.pub2.
  • Tiroesele B, Skoda SR, Hunt TE, Lee DJ, Molina-Ochoa J, Foster JE. 2014. Population structure, genetic variability, and gene flow of the bean leaf beetle, Cerotoma trifurcata, in the Midwestern United States. J. Insect Sci. 14:62. http://www.insectscience.org/14.62
  • Vyavhare, S., M. O. Way, R. F. Medina. 2014. Stink bug species composition and relative abundance of the redbanded stink bug in soybean in the Upper Gulf Coast Texas. Environ. Entomol. 43:1621-1627.
  • Whitworth, R.J., J.P. Michaud, H.N. Schwarting. 2014. Soybean insect pest management guide, 2014. Kansas State University Research and Extension, #MF743.
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