Chemical selector
The Pesticide Selector includes suggestions for chemical control of pests in Kansas crops, which are provided by K-State Research and Extension, and may not be relevant for states other than Kansas. We will continue to expand this tool for help in selecting other types of agricultural chemicals, and for other states. Contact the myFields Team if you are interested in contributing content!
The herbicide performance ratings are taken from: C.R. Thompson, D.E. Peterson, W.H. Fink, P.W. Stahlman, and J.W. Slocombe. 2020. Chemical Weed Control for Field Crops, Pastures, Rangeland, and Noncropland, Kansas State University, January 2016. Contribution no. 16-029-S from the Kansas Agricultural Experiment Station. Find it online at the bookstore.
The insecticide recommendations are taken from: B.P. McCornack, S. Zukoff, R.J. Whitworth, J.P. Michaud, and H.N. Schwarting. 2019. Insect Management Guides. March 2018. Kansas State University Agricultural Experiment Station and Cooperative Extension Service. PDF formats are available here.
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Crop type: Soybean
Application type: Postemergence
Marvel is a premix containing 0.12 lb fluthiacet and 2.88 lb of fomesafen/gal for postemergence broadleaf weed control. Can be applied to soybeans up to the R3 stage for control of actively growing weeds less than 4 inches tall. Apply with NIS, COC, or MSO for optimal weed control. Do not use in counties west of Highway 281. Do not rotate to wheat, barley, rye, oats, or triticale for 4 months; field corn for 10 months; or sunflower, alfalfa, sorghum, cotton, or canola for 18 months after Marvel application. Do not feed treated soybean forage or hay to livestock.