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
Hornet WDG Broadleaf Blend Herbicide is a mixture of 18.5% flumetsulam (Python) and 60% clopyralid salt (Stinger) that may be applied to corn up to the V6 stage. It is taken up by weed seedlings through both foliage and roots. Use rate depends on weed size and the duration of residual soil activity desired. Hornet WDG Broadleaf Blend Herbicide WDG can be tank mixed with numerous postemergence herbicides to broaden the weed-control spectrum, but do not tank mix with Basagran, Laddok, or Lightning. Hornet WDG Broadleaf Blend Herbicide WDG is not to be used, either soil applied or postemergence, where Counter or Thimet insecticides have been used, as a severe crop injury may occur. Always apply with 1% COC, 1% MSO, or a quality NIS at 0.25% (1 qt/100 gal), depending on the tank mix partner. In addition, 2.5% (2.5 gal/100 gal) UAN can be added to enhance weed control under extremely dry growing conditions, but do not use liquid fertilizer carrier. Rotate to wheat after 4 months, soybean or alfalfa after 10.5 months, sorghum after 12 months, and sunflower after 18 months. Supplemental label allows aerial application. Follow label directions.