Chemical selector

Crop type: Soybean
Application type: Preplant or Preemergence

Pounds of active ingredient per acre
Imazethapyr 0.063
Product quantity per acre
4 oz Pursuit herbicide/Thunder
Comments and limitations

Controls many annual weeds. Apply up to 45 days before planting and incorporate with two passes into the top 1 to 2 inches of soil. Preemergence application can be effective if enough rainfall to wet the soil to a depth of 2 inches is received within 7 days of planting. Do not rotate to alfalfa or wheat for 4 months; cotton, oat, sorghum, or sunflower for 18 months; or canola for 40 months after application. Do not allow grazing or feed treated soybean forage, hay, or straw.

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.

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