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: Corn
Application type: Postemergence
Apply mesotrione from emergence to 8-leaf stage of corn. Always add COC at 1% v/v (1 gal/100 gal spray). Note label for insecticide restrictions. Controls many annual broadleaf weeds. Mesotrione is rainfast after 1 hour. For corn up to 12 inches tall, mesotrione may be used in combination with atrazine at 0.25 to 0.75 lb/acre or in combination with Bicep II Magnum or Lite Magnum. Can rotate to winter wheat 4.5 months after application and to cotton, soybean, or sorghum the following spring. See label for sprayer cleanup after application. Follow label directions.