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: Soybean
Application type: Postemergence
Liberty is a nonselective herbicide for use only on soybean designated as Liberty Link. Application
to other soybean varieties will result in severe injury or death of the crop. Apply to
soybean from emergence until the bloom stage of growth for control of small, actively growing
weeds less than 4 inches tall. Always condition spray water with spray-grade AMS at
1.5 lb/acre before adding Liberty to the spray solution. Liberty is most effective with warm
temperatures, high relative humidity, and bright sunlight. Application to stressed plants or
late in the day may result in reduced weed control. Liberty has no residual activity, so twopass
weed control programs including a preemergence herbicide or sequential postemergence
treatments generally are required to achieve good weed control and minimize weed competition.
Do not apply more than two applications of Liberty to Liberty Link soybean. If a new
flush of weeds emerges or existing weeds are not adequately controlled, a second application
can be applied 5 to 10 days after the first application. Do not apply more than 65 oz/acre of
Liberty per growing season. Do not graze or harvest the treated crop for hay.