Jeffrey L. Gunsolus

Emeritus Professor and Extension Weed Scientist

Office Address

207 Hayes Hall

Mailing Address

411 Borlaug Hall

1991 Upper Buford Circle

St. Paul, MN 55108

gunso001@umn.edu

+1 612 625 8130

Education

Ph.D.: N.C. State (1986)

Year Appointed: 1986

Rank: Professor and Extension Weed Scientist

Areas of Interest

Corn and soybean weed management

Research

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.

Selected Publications

Gunsolus, J. L. and P. Bongard. 2018. Weed management web site: https://extension.umn.edu/crop-production#weed-management

Miller, D. W., J. L. Gunsolus, B. R. Durgan, and R. L. Becker. 2000-2018. Applied Weed Science web site: http://appliedweeds.cfans.umn.edu/

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