Cows in lush pasture



Weed control solution to maximize your land's potential

For every pound of weeds controlled on range and pasture lands, you return more than a pound of grass back for high quality forage.


Now DuraCor™ herbicide provides extended control of annual and perennial broadleaf weeds controlling more than 140 of those grass robbing species in range & pasture. DuraCor is the weed control solution to maximize the land’s potential controlling weeds even other products miss.


Duracor is power by Rinskor™ active, winner of the American Chemical Society’s Green Chemistry award.


The American Chemical Society’s Green Chemistry award, given to companies or institutions that have developed a new process or product that helps protect public health and the environment, is the United States’ most prestigious award program for green chemistry innovations.



Supplemental Information

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



• Flexible Application Methods:

  » Easily Mixes with UAN

  » Fertilizer Compatibility

  » Compatible with Multiple Tank Mix Partners

• Low and Flexible Use Rate:

  » 12-20 fl ozs per acre

• Non-Restricted:

  » Does not contain 2,4-D or Dicamba

Improved Forage Quality and Quantity

•  Extended broadleaf weed control

•  Increased activity on hard to control weeds

•  One jug controls over 140 weeds

Peace of Mind

•  No grazing restrictions for any class of livestock

•  Safe on Grass

•  Combination of Two Reduced Risk Herbicides

•  Non-Volatile

•  Low Odor

Use Sites


Permanent grass pastures, including grasses grown for hay

Conservation Reserve Program (CRP)

Non crop land areas

Controlled Weeds

Anticipated to control over 140 broadleaf weeds and woody plants including: 

  • Amaranth, Palmer (Amaranthus palmeri)
  • Amaranth, Spiny (Amaranthus spinosus)
  • Annual broomweed
  • Black locust
  • Buttercup
  • Canada Thistle
  • Caraway
  • Cocklebur
  • Croton, Woolly (Croton capitatus)
  • Curly Dock
  • Henbit
  • Honey Locust
  • Horsenettle
  • Ironweed
  • Knapweed
  • Marshelder, Annual (Iva annua)
  • Mullein, Common (Verbascum thapsus)
  • Nightshade, Silverleaf (Solanum elaeagnifolium)
  • Plantain
  • Poison-hemlock
  • Rush skeletonweed
  • Snow-On-The-Mountain
  • Thistle, Musk
  • Vervain
  • Wild Carrot
  • Wormwood, Absinth (Artemisia absinthium)

Refer to the Product Label for complete product efficacy information.

Find labels for this product

State Registrations

  • Registered
  • Unregistered

Technical Specifications

  • Application Rate

    Low and flexible

      » 12-20 fl oz per acre

  • Application Timing

    Treat when weeds are actively growing and not stressed by drought or other condition. Increase herbicide rate within the labeled rate range as the season progresses and plants become more mature. Higher rates will produce an increase in residual. 

  • Application Method

    Ground Broadcast Application: Spray volumes greater than 10 gallons per acre generally provide better coverage and better control.

    Aerial Broadcast Application: Use 2 gallons or more per acre total spray volume. 5 gallons per acre or greater will generally provide better coverage and better control, particularly in dense and/or tall foliage.

    High-Volume Foliar Application: High volume foliar treatments may be applied at rates equivalent to a maximum of 20fl oz per acre per annual growing season.

    Spot Application: Spot treatments may be applied at 40 fl ozs of DuraCor™ per acre, if an application is not made to more than 50% of the treatable acre. Spray volume should be sufficient to thoroughly and uniformly wet weed foliage, but not to the point of runoff.

  • Additional Information

    Adjuvant Recommendations

    Non-Ionic Surfactant:  0.25% volume per volume (1 to 2 quarts per 100 gallons of spray)


    Methylated Seed Oil: 1% volume per volume.

    Storage and Handling 

    DuraCor is suspension concentrate (SC) formulation that offers several benefits mentioned above. As with all SC formulation types, it is recommended to shake or mix the product prior to application for best results. Refer to your Range and Pasture Specialist for additional information.

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Connect with Range & Pasture:


DuraCor™ has no grazing or haying restrictions for any class of livestock, including lactating dairy cows, horses (including lactating mares) and meat animals prior to slaughter. However, label precautions do apply to forage treated with DuraCor and to manure from animals that have consumed treated forage within the last three days. DuraCor 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. Consult the label for full details. Always read and follow label directions.