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: Sorghum
Application type: Postemergence
Apply bromoxynil when broadleaf weeds are small and growing actively but before they reach size limits listed on the label. Apply at 3- to 4-leaf stage up to boot stage of sorghum. Use a maximum of two applications per season. This is a contact herbicide, so thorough coverage is required. Bromoxynil is safer for sorghum than 2,4-D or dicamba. Pigweeds are somewhat tolerant and should be no larger than the 4-leaf stage. Can be tank mixed with low rates of 2,4-D or dicamba. Do not cut forage for feed or allow grazing within 30 days of treatment.