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: Corn
Application type: Postemergence
Controls most broadleaf annual weeds. Best when applied before weeds are 3 inches tall. For corn from the spike stage through 8 inches, apply up to 1 pt/a. Reduce the rate to 0.5 pt if corn is growing on coarse-textured soils. Apply up to 0.5 pt until corn is 36 inches tall or until 15 days before tassels emerge, whichever is earlier. Can be tank mixed with Exceed, Permit, and many other herbicides. Do not apply when temperature on the day of application is expected to exceed 85 degrees F. Do not apply when soybean is growing nearby, if corn is more than 24 inches tall, soybean is more than 10 inches tall, or soybean has begun to bloom. Avoid spray or vapor drift to sensitive crops. See label for additional precautions. The addition of AMS to a spray mixture containing dicamba will increase the risk of volatility of dicamba and mitigate the benefits of lower volatility formulations.