Tordon® 22K

  • Herbicide

All-purpose noxious weed control

Tordon® 22K herbicide provides all-purpose noxious weed control as well as basic invasive weed management. It also provides the best leafy spurge control available and is an excellent choice for field bindweed control.

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Successful control of leafy spurge

Tordon® 22K herbicide offers the rate flexibility needed to nip new leafy spurge patches in the bud or to finish off large established patches thinned by broadcast applications of GrazonPD3™ herbicide.

Stops the toughest broadleaf weeds

Tordon 22K is active on most noxious and invasive weeds, including biennial thistles, perennial Canada thistle, knapweeds, yellow starthistle and many others. Tordon 22K is the best leafy spurge control available and is an excellent choice for field bindweed.

Take out tough weeds, leave the grass

Tordon 22K is safe to desirable grasses and has no grazing restrictions except for lactating dairy animals. Use Tordon 22K to manage the most troublesome weeds on rangeland and permanent grass pastures, noncropland and Conservation Reserve Program acres.

Controlled weeds

This product delivers effective weed control against the following:

  • Bull thistle
  • Bursage
  • Canada Thistle
  • Cholla
  • Dalmation Toadflax
  • Diffuse Knapweed
  • Field bindweed
  • Geyer larkspur
  • Gorse
  • Leafy Spurge
  • Lindheimer's Prickly Pear
  • Musk Thistle
  • Plains Prickly Pear
  • Plumeless Thistle
  • Rush skeletonweed
  • Russian Knapweed
  • Scotch Thistle
  • Spotted Knapweed
  • Sulfur Cinquefoil
  • Sumac

Refer to the Product Label for complete product efficacy information.

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State registrations

  • Registered
  • Unregistered

Technical Specifications

  • Active Ingredient


  • Application Rate

    See product specimen label for specific rate recommendations.

  • Application Timing

    Treat when weeds are actively growing and not stressed by drought or other conditions. Increase the herbicide rate within the labeled rate range as the season progresses and plants become more mature.

  • Application Method

    Broadcast by ground or by air. Spot treatment.  

Other solutions

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Label precautions apply to forage treated with Chaparral, GrazonNext HL or Milestone and to manure from animals that have consumed treated forage within the last three days. Consult the label for full details.

GrazonPD3™ and Tordon 22K are Restricted Use Pesticides. Chaparral, GrazonNext HL and Milestone are 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.