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: Preplant or Preemergence
Apply Verdict with additional Outlook for enhanced residual control. The addition of atrazine is required for full-season broad-spectrum weed control. Applications may be made preplant surface or preplant incorporated up to 14 days before planting or preemergence surface after planting. Do not treat emerged sorghum, as severe crop injury may result. When Verdict is used to burndown emerged broadleaf weeds, it must be applied with MSO at 1% v/v (minimum of 1 pt/a) plus AMS at 8.5 to 17 lb/100 gal spray solution or liquid nitrogen 1.25 to 2.5 gal/100 gal. Sequential applications with Sharpen or Verdict require 14 days between applications. Do not apply more than 0.111 lb ai/a per cropping season. Do not use Verdict if organophosphate or carbamate insecticides have been used at planting. Use Concep safened sorghum seed.