Authority® Assist Herbicide

The Foundation Preemergence with Grass Assist for Higher Yielding Soybeans

Authority® Assist herbicide stops small-seeded broadleaf weeds and grasses before they start - before they steal yield at season's end. Grass Assist means you can make more timely - effective - Roundup® herbicide application in your Roundup Ready® soybean system. In addition, Authority Assist herbicide rules against glyphosate-tolerant summer weeds like lambsquarters, pigweed, nightshade, morningglory and kochia.

  • Delivers multiple modes of action
  • Excellent solubility works across variable soil, residue, and moisture conditions for more consistent performance
  • No pH restrictions fits multiple soil types and geographies, with very low risk for carryover to corn
  • Grass Assist provides added grass control for a broader spectrum foundation product
  • Superior crop safety for greater yields

“Authority Assist herbicide is cleaner than the competition and we needed a product that gave us flexibility in our corn seed rotation.”

Greg Nuttelman, York, NE

Greg Nuttelman Testimonial

Authority Assist Herbicide Performance

Authority® Assist Herbicide Weed Spectrum

Broadleaf Weeds
  • Smartweeds, annual
  • Cocklebur
  • Kochia
  • Lambsquarters
  • Mustards
  • Nightshade
  • Nutsedge
  • Pigweed
  • Velvetleaf
  • Venice mallow
  • Waterhemp
  • Morningglory
  • Prickly sida

  • Barnyardgrass
  • Crabgrass, large
  • Crabgrass, small
  • Crabgrass, southern
  • Foxtail, bristly*
  • Foxtail, giant*
  • Foxtail, green*
  • Foxtail, yellow*
  • Goosegrass
  • Johnsongrass, seedling**
  • Panicum, fall
  • Panicum, Texas
  • Shattercane*
  • Signalgrass, broadleaf

*Indicates suppression or partial control only.

**Will not control ALS-resistant biotypes of these weed species.