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
Halex GT, a mixture of Callisto, Dual Magnum, and Touchdown, may be applied postemergence to glyphosate tolerant (GT or RR) corn from emergence to 30 inches in height. Condition water with 8.5 to 17 lb AMS per 100 gal spray mix before adding Halex GT. Always add 0.25% v/v (1 qt/100 gal) NIS. Best if applied to weeds before they become competitive. Tank mix with a product containing dicamba for increased control of kochia and Russian thistle. Halex GT can be applied with aerial application. Rotation restrictions: Corn (all types), sweet sorghum, grain sorghum (Concep treated sorghum only), anytime; barley, oats, rye, and wheat, 4 months; alfalfa, cotton, peas, potatoes, soybean, and sunflower, 10 months; canola and flax, 12 months; and all other crops, 18 months.
Halex GT, a mixture of Callisto, Dual Magnum, and Touchdown, may be applied postemergence to glyphosate tolerant (GT or RR) corn from emergence to 30 inches in height. Condition water with 8.5 to 17 lb AMS per 100 gal spray mix before adding Halex GT. Always add 0.25% v/v (1 qt/100 gal) NIS. Best if applied to weeds before they become competitive. Tank mix with a product containing dicamba for increased control of kochia and Russian thistle. Halex GT can be applied with aerial application. Rotation restrictions: Corn (all types), sweet sorghum, grain sorghum (Concep treated sorghum only), anytime; barley, oats, rye, and wheat, 4 months; alfalfa, cotton, peas, potatoes, soybean, and sunflower, 10 months; canola and flax, 12 months; and all other crops, 18 months.