Mesa County Roadway Herbicide Application Notice 05-01-2025

Herbicide treatments along Mesa County roadways in the Collbran, Mesa, and Molina areas are scheduled for the week of May 12 — and property owners wishing to opt out must join the "No Spray" list.

Roadside and right-of-way weed treatment — up to 10 feet on each side of the road — began countywide in early March 2025 and will continue several times through October 2025.

Private property owners wishing to opt out of the herbicide treatments must join the "No Spray" list, clearly mark their property lines with signs or bright flags, and manage the weeds in and along that area themselves. 

If your property is within the jurisdiction of a City, you do not need to sign up. Treatments are not done in neighborhoods. 

The treatments focus on maintaining road structures and providing safe travel on main roads in unincorporated Mesa County.

To put your property on the "No Spray” list, visit our website and fill out and submit the form. For questions, contact Mesa County Noxious Weed & Pest Management at 970-255-7121 or weed.pest@mesacounty.us.