Image of a wheat field

Curtail® M


Outstanding broadleaf weed control

Curtail® M herbicide translocates to the roots of stubborn perennial weeds, providing outstanding control of Canada thistle. In addition, Curtail M also controls many annual broadleaf species, such as wild mustard, wild buckwheat, pigweed, lambsquarters, volunteer sunflower and more. Curtail M contains clopyralid and MCPA, and it is helpful for small grains growers who want the superior crop tolerance offered by MCPA in their weed control programs but still require powerful broadleaf weed control.


Supplemental Information

To find supplemental information on this product in a registered state, please use our Label Finder tool.


Superior control

Weed-2 Alt

Curtail® M herbicide has superior control of Canada thistle. It translocates to the root for complete control.

Flexible application

WheatField-18 Alt

Curtail M has a wide application window.

Broad-spectrum broadleaf control

Weed-3 Alt

Curtail M controls many annual broadleaf species such as wild mustard, wild buckwheat, pigweed, lambsquarters and volunteer sunflower.










Controlled weeds

This product delivers effective weed control against the following:

  • Alfalfa
  • Buckwheat
  • Clover
  • Cornflower
  • Dandelion
  • Hawksbeard
  • Horseweed
  • Knapweed
  • Kochia
  • Lambsquarters
  • Lettuce
  • Mustard
  • Nightshade
  • Pigweed
  • Ragweed
  • Shepherd's-purse
  • Sowthistle
  • Sweetclover
  • Thistle
  • Wormwood

Refer to the Product Label for complete product efficacy information.

Find labels for this product

State Registrations

  • Registered
  • Unregistered

Technical Specifications

  • Active Ingredient

    Clopyralid; MCPA-EHE

  • Herbicide Group

    Clopyralid and MCPA, the active ingredients in this product, are Group 4 herbicides, based on the mode of action classification system of the Weed Science Society of America.

  • Approved Use

    For selective control of broadleaf weeds in wheat, barley, oats and flax not underseeded with a legume, fallow cropland, grasses grown for seed, rangeland, permanent grass pastures, and Conservation Reserve Program (CRP) acres.


For more information, download the full label for Curtail® M Herbicide
Small Grains Crop Protection Guide
®™Trademarks of Dow AgroSciences, DuPont or Pioneer and their affiliated companies or respective owners. Curtail M is not registered for sale or use in all states. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Always read and follow label directions.