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
Liberty is a nonselective herbicide for use over corn designated as Liberty Link or corn warranted by BASF as being resistant to Liberty. Optimum weed control is achieved by applying with atrazine or Armezon when weed height is 1 to 4 inches and corn height is less than 12 inches. May be applied without atrazine to corn up through the V6 stage. Liberty is primarily a contact herbicide, so thorough spray coverage is important. For best results on crabgrass, sandbur, and yellow foxtail, apply before tillering. Always condition water carrier with spray-grade AMS at 3 lb/a before adding Liberty to the spray tank. Do not add surfactants. See label for rate guidelines, according to weed species and size. Liberty is foliar active and has no soil activity. Apply in a tank-mix with a residual herbicide for extended control. Liberty can be applied twice in-season. Maximum Liberty per season is 87 fl oz per acre.