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.
Click here for a How-to Tutorial.
Crop type: Soybean
Application type: Postemergence
Controls annual broadleaf weeds and grasses. Apply to small, actively growing weeds before they reach size limits listed on the label. Apply with NIS, COC, or MSO plus fertilizer solutions. Weed control with Pursuit has been enhanced more by MSO than by NIS or COC in research conducted at K-State. Some pigweed species, such as Palmer amaranth, developed resistance to Pursuit and other herbicides having the same mode of action. Management strategies such as alternative control methods, crop rotation, and using herbicides with a different mode of action to replace or supplement Pursuit in a tank mix need to be considered in areas that may have resistant weed biotypes. A tank mix with Cobra or Ultra Blazer improves control of pigweeds, ragweed, prickly sida, venice mallow, and copperleaf. Do not use other imazethapyr-containing products in the same crop season. Do not rotate to alfalfa or wheat for 4 months; field corn for 8.5 months; cotton, oat, sorghum, or sunflower for 18 months; or canola for 40 months after application. Do not allow grazing or feed treated soybean forage, hay, or straw.