Chemical selector

Crop type: Wheat
Application type: Postemergence

Pounds of active ingredient per acre
MCPA ester 0.25 to 0.75
Product quantity per acre
0.5 to 1.5 pt of 4 lb per gal MCPA ester
Comments and limitations

Controls many broadleaf weeds. Apply to wheat from the 3-leaf to early boot stages of growth for control of small actively growing weeds. Much safer than 2,4-D as a fall treatment or on small wheat. Can be applied in nitrogen fertilizer and as a tank mix with many other herbicides. Do not allow livestock to graze treated wheat within 7 days after application.

Product links (each will open in a new tab)
Tenkoz® MCPA Broadleaf Amine 4: Product label, Safety data sheet
Pounds of active ingredient per acre
Metsulfuron + MCPA 2,4-D 0.0038 + 0.25 to 0.50
Product quantity per acre
0.1 oz Ally/Metsulfuron + 0.5 to 1 pt of 4 lb per gal MCPA/2,4-D
Comments and limitations

Controls many broadleaf weeds. Apply with MCPA in the fall or spring after the 2-leaf stage but before the boot stage of wheat. Apply with 2,4-D in the spring after the wheat is fully tillered but before the early boot stage. Apply to small, actively growing weeds up to 2 inches soybean, IR corn, or proso millet for 4 months, barley or oat for 10 months, non-IR corn for 12 months, non-STS soybean for 12 to 34 months, or sunflower for 22 months after Ally application. Do not use on soil with pH above 7.9.

Product links (each will open in a new tab)
Tenkoz® MCPA Broadleaf Amine 4: Product label, Safety data sheet
Pounds of active ingredient per acre
Thifensulfuron + MCPA/2,4-D 0.014 to 0.028 + 0.25 to 0.38
Product quantity per acre
0.45 to 0.9 oz Harmony SG + 0.5 to 0.75 pt of 4 lb per gal MCPA/2,4-D
Comments and limitations

Controls many broadleaf weeds and wild garlic. Apply MCPA in the fall or spring after the 2-leaf stage of wheat but before the flag leaf is visible. Apply with 2,4-D in the spring after wheat is fully tillered but before the flag leaf is visible. Apply with NIS at 0.12 to 0.25% v/v to small, actively growing weeds. Use 0.75 to 0.9 oz/acre for wild buckwheat or wild garlic control. Does not provide residual weed control, but any crop can be planted 45 days after treatment. 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)
Tenkoz® MCPA Broadleaf Amine 4: 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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