My job responsibilities are to plan, develop, implement, and evaluate statewide educational programs on corn and soybean weed management.My weed management research program is designed to be applicable to Minnesota growers' needs and the primary objective is to help growers’ diversify their weed management program.The primary objective of my extension program is to develop a more sustainable corn and soybean production system by teaching the principles of safe, effective, and cost-efficient weed management.
Gunsolus, J., D. Wyse, K. Moncada and C. Fernholz. 2011. Weed Management. In Tools for Managing Pest and Environmental Risks to Organic Crops in the Upper Midwest. K. M. Moncada and C. C. Sheaffer (eds.). https://organicriskmanagement.umn.edu/
Johnson, G., F. Breitenbach, L. Behnken, R. Miller, T. Hoverstad, and J. Gunsolus. 2012. Comparison of herbicide tactics to minimize species shifts and selection pressure in glyphosate-resistant soybean. Weed Tech. 26:189-194.
Goplen, J. J., C. C. Sheaffer, R. L. Becker, J. A. Coulter, F. R. Breitenbach, L. M. Behnken, G. A. Johnson, J. L. Gunsolus. 2016. Giant ragweed (Ambrosia trifida) seed production and retention in soybean and field margins. Weed Tech. 30:246-253.
Stahl, L.A.B., L.M. Behnken, F.R. Breitenbach, R.P. Miller, D.Nicolai, J.L. Gunsolus. 2016. Use of an integrated pest management assessment as an educational, needs assessment and evaluation tool through TurningPoint. Journal of Extension [On-line], 54(5) Article 5FEA4. Available at: https://www.joe.org/joe/2016october/a4.php
Goplen, J. J., C. C. Sheaffer, R. L. Becker, J. A. Coulter, F. R. Breitenbach, L. M. Behnken, G. A. Johnson, J. L. Gunsolus. 2017. Seed bank depletion and emergence patterns of giant ragweed (Ambrosia trifida) in Minnesota cropping systems. Weed Sci. 65:52-60.
Goplen, J. J., C. C. Sheaffer, R. L. Becker, R. D. Moon, J. A. Coulter, F. R. Breitenbach, L. M. Behnken, and J. L. Gunsolus. 2017. Giant ragweed (Ambrosia trifida) emergence model performance evaluated in diverse cropping systems. Weed Science. 66:36-46.
Goplen, J.J., J.A. Coulter, C.C. Sheaffer, R.L. Becker, F.R. Breitenbach, L.M. Behnken, and J.L. Gunsolus. 2017. Economic performance of crop rotations in the presence of herbicide-resistant giant ragweed. Agronomy Journal. 110:260-268.
Goplen, J. J., C. C. Sheaffer, R. L. Becker, J. A. Coulter, F. R. Breitenbach, L. M. Behnken, and J. L. Gunsolus. 2018. Giant ragweed emergence pattern influenced by spring tillage timing in Minnesota. Crop, Forage and Turfgrass Management. doi: 10.2134/cftm2018.04.0025.
Schroeder, J., M. Barrett, D. R. Shaw, A. B. Asmus, H. Coble, D. Ervin, R. A. Jussaume, M. D. K. Owen, I. Burke, C. F. Creech, A. S. Culpepper, W. S. Curran, D.M. Dodds, T. A. Gaines, J. L. Gunsolus, B. D. Hanson, P. Jha, A. E. Klodd, A. R. Kniss, R.G. Leon, S. McDonald, D. W. Morishita, B. J. Schutte, C. L. Sprague, P.W. Stahlman, L. E. Steckel, M. J. VanGessel. 2018. Managing wicked herbicide-resistance: Lessons from the field. Weed Tech. 32:475-488.
Ervin, D.E., E.H. Breshears, G.B. Frisvold, T. Hurley, K.E. Dentzman, J.L. Gunsolus, R.A. Jussaume, M.D.K. Owen, J.K Norsworthy, M.M. Al Mamun, W.Everman. 2019. Farmer attitudes toward cooperative approaches to herbicide resistance management: A common pool ecosystem service challenge. Ecological Economics 157: 237-245. Accepted in 2018. https://doi.org/10.1016/j.ecolecon.2018.11.023
Dept. of Agronomy and Plant Genetics 411 Borlaug Hall | 1991 Upper Buford Circle | St. Paul, MN 55108 Phone: 612-625-7773 | Fax: 612-625-1268 | email@example.com