Don't Just Manage Poa. Xonerate It.

  • XONERATE® Herbicide doesn’t just manage or suppress Poa annua on turfgrasses, it eliminates it. Studies have shown XONERATE to be 90% effective in controlling Poa annua1, more than any current product on the market. A major breakthrough in Poa control.
  • XONERATE also provides greater application flexibility than current products. And by eliminating Poa annua, you’re also eliminating the time and expense of trying to manage it: Less nutrient and water requirements. Less time spent watering and mowing. And less pesticide use due to a possible reduction in disease and insects.
  • XONERATE allows for selective removal of Poa annua.
  • Allows creeping bentgrass to be re-seeded seven or more days after the last application.
  • Can be used as a post-emergent control for smaller percentages of Poa annua, while transitioning to desirable turfgrass.
  • Can be used for heavy infestation control of Poa annua in a renovation program.
  • Absorbed by plant leaves and roots for quick, residual, post-emergent activity.
  • Eliminates Poa annua early in the season within three to four weeks which allows desirable grasses to fill in before the summer months for unmatched turf aesthetics during the heavy play season.2
  • Eliminates Poa annua, which could lead to less pesticide use due to a possible reduction in disease and insects on your fairways.
  • Effectiveness proven by university trials and golf course Superintendent and turf manager experience.


XONERATE is a post-emergent herbicide and represents a new turfgrass chemistry for turfgrasses. XONERATE contains 70 percent amicarbazone in a water-dispersible granule formulation. It’s absorbed by leaves and roots and inhibits photosynthesis in sensitive plants by interfering with normal electron transport.

  • Poa annua control occurs over a three- to four-week time period.
  • Poa annua initially becomes chlorotic (loss of green color), followed by necrosis (browning of plant tissue).
  • Temporary yellowing of the turf may occur after application. This effect is temporary and the turf will recover in 14 to 21 days.

What to Expect with XONERATE

Unlike current management treatments that only suppress Poa annua, the evidence of XONERATE working is much easier to see. Within 21 to 30 days your Poa annua will be gone, allowing desirable turfgrasses to fill in. The time lapse above represents a moderately heavy Poa annua infestation in creeping bentgrass with application in the spring. Results will vary depending upon time of treatment, density of Poa annua, turf grass conditions and other variables.

2 Rates and applications will vary by turf type and geography.

Weeds Controlled or Suppressed

Depending on the rate used, XONERATE will control or suppress the following broadleaf and grass weeds in turf:

  • Bluegrass, annual (Poa annua)
  • Bluegrass, roughstalk (Poa trivialis) (seedling only, not effective on established plants)
  • Bittercress, hairy
  • Burweed, lawn
  • Chickweed, common
  • Chickweed, sticky
  • Cudweed sp.
  • Henbit
  • Mustard, wild
  • Parsley-piert
  • Pepperweed, Virginia
  • Purslane, common
  • Radish, common
  • Shepherd’s-purse
  • Speedwell sp.
  • Spurge, spotted

1 Grounds Maintenance, Controlling Poa annua in bent grass greens by Bert McCarty, Clemson University, December 22, 2011
2 Rates and applications will vary by turf type and geography.