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: Alfalfa
Arthropod: Alfalfa Weevil
This carbamate insecticide is labeled restricted use due to high acute toxicity to humans. Signal words on label: DANGER POISON. Toxic to fish and wildlife. Drift and runoff from treated areas may be hazardous to aquatic organisms. Highly toxic to bees. Do not apply or allow to drift to blooming crops or weeds if bees are visiting the treatment area. Do not apply through any type of irrigation system. Do not apply to dormant or semi-dormant alfalfa when minimum daily temperature is less than 50F. REI is 48 hours. PHI is 7 days. See label for other restrictions.