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: Corn
Arthropod: Grasshoppers, Grasshoppers
This microencapsulated pyrethroid insecticide is labeled restricted use due to toxicity to fish and aquatic organisms. Signal word on label: CAUTION. Apply by ground or air in sufficient gallonage to obtain full coverage of target location. Apply in a minimum of 2 gallons of water per acre by air. Do not apply more than 0.06 lb. a.i. (0.96 pint) per acre per season. Do not apply more than 0.03 lb. a.i. (0.48 pint) after silk initiation. Do not apply more than 0.015 lb. a.i. (0.24 pint) after corn has reached the milk stage. Do not apply this product or allow it to drift to blooming crops or weeds if bees are visiting the treatment area. Do not allow meat or dairy animals to graze treated area within one day after treatment. Do not feed treated corn fodder or silage to meat or dairy animals within 21 days of harvest. REI is 24 hours and PHI is 21 days.