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
Lexar EZ is a premix of 1.74 lb S-metolachlor, 0.22 lb mesotrione (Callisto), and 1.74 lb atrazine/gal (a restricted-use pesticide). Lexar EZ can be applied preplant nonincorporated from 21 days before planting through preemergence in sorghum for which the seed has been treated with Concep III. Applying Lexar EZ less than 7 days before planting may increase the risk of crop injury. Lexar may be applied in a split application to grain sorghum. Apply Lexar EZ 1.5 to 1.75 qt early preplant nonincorporated followed by 1.25 to 1.5 qt prior to sorghum emergence. Do not apply more than 3 qt Lexar EZ total in the split applications. Do not apply to sandy soils including sand, sandy loam, or loamy sand. Do not apply to emerged sorghum. Do not use on forage sorghum, sweet sorghum, sudangrass, or any dualpurpose sorghum.