Chemical selector

Crop type: Soybean
Application type: Postemergence

Pounds of active ingredient per acre
Thifensulfuron 0.004 to 0.016
Product quantity per acre
0.125 to 0.5 oz Harmony SG with TotalSol, or 0.083 to 0.33 oz Unity/Harass
Comments and limitations

Use only the lowest rate on non-STS soybean; higher rates should be used only on STS soybean. Primarily for control of lamsquarters, annual smartweeds, and velvetleaf at the 3- to 4-leaf stage. May be tank mixed with glyphosate in Roundup Ready soybean. Always apply with NIS and nitrogen fertilizer additives. Do not apply by chemigation. Do not feed forage from treated areas or allow livestock grazing within 7 days of application. Allow 30 days between application and feeding hay from treated areas to livestock.

Product links (each will open in a new tab)
Harmony® SG with TotalSol®: Product label, Safety data sheet

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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