HighNoon Herbicide:
A Powerful New Option

If you’ve ever felt like you’re playing whack-a-mole with invasive and undesirable vegetation, you know how important it is to have effective, easy-to-use options for weed and brush control. With its recently expanded label for nationwide use in vegetation management applications, HighNoon herbicide from Corteva Agriscience gives you and your contractors that option.

HighNoon herbicide combines two powerful active ingredients, Rinskor® and aminopyralid, to provide selective activity that helps maintain desirable grasses and forbs while controlling some of your most troublesome weeds like annual and biannual thistles, poison hemlock and wild parsnip. But simply controlling weeds and undesirables is only one of the benefits of an integrated vegetation management (IVM) program using HighNoon herbicide.

One Result. Countless Benefits.

Used as part of a larger IVM program, HighNoon herbicide can allow native grasses and forbs to become established in vegetation management zones. In turn, this helps:

  • Improve biological control. Native ground covers that are allowed to flourish can quickly grow to crowd out invasive or undesirable vegetation species, reducing stem counts over the long term with no additional labor required. HighNoon herbicide controls over 140 broadleaf weeds and annual grasses, and provides a valuable tank-mix partner for enhanced control of woody species like salt cedar and Russian olive, all while allowing valuable native grasses and ground covers to become established.
  • Reduce fuel for fire. Annual and invasive grasses that don’t germinate don’t contribute fuel for potential wildfires. An IVM program using HighNoon herbicide offers highly selective control of some of the most dangerous annual grasses, reducing the overall fuel load and helping mitigate the risk and spread of fire.
  • Improve habitat, with less danger to native species. Use of selective herbicides such as HighNoon preserves the vegetation that serves as habitat for birds, pollinators and other species. In addition, control with herbicides means less mowing – and that means less risk to ground-nesting birds and other wildlife.
  • Reduce regrowth and spreading. If the weed seed never germinates in the first place, it obviously can’t regrow, and it can’t go to seed later in the year. HighNoon herbicide offers extended residual control, helping prevent regrowth of broadleaf weeds and annual grasses.

Easy-To-Use, Reduced-Risk Weed Control

Along with effective control of annual grasses and broadleaf weeds, HighNoon also gives you an easy-to-use liquid formulation that mixes well, has low odor, can be used up to water’s edge and, for those who spray sites close to pastures, carries no grazing restrictions. Add the fact that the proprietary Rinskor active ingredient earned the Green Chemistry Challenge Award from the American Chemical Society’s Green Chemistry Institute, and you have a product that gives the industry a powerful, reduced-risk option for control of undesirable grasses and weeds.

For more information on the benefits of HighNoon herbicide as a foundation component of an IVM program, reach out to your Corteva Vegetation Management Specialist.

Under normal field conditions HighNoon® is nonvolatile. HighNoon 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. Label precautions apply to forage treated with HighNoon and to manure and urine from animals that have consumed treated forage. Consult the label for full details. HighNoon is not registered for sale or use in all states. Always read and follow label directions.


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