Annual Gros Ventre River Spray Days


Every year since 2004, members of the JHWMA join forces in July to treat spotted knapweed along the Gros Ventre River. We start where the infestation begins in the Bridger Teton National Forest and follow it 11 miles to the Snake River. In the earlier years of the project, only portions of the river were treated due to the dense growth of the knapweed. After many years, the infestation is noticably less dense, allowing us to treat the entire corridor. Spotted knapweed seeds are known to be viable for at least 8 years and each plant can drop over 1,000 seeds per year. We still have a long way to go.

Private Landowner Programs

The Teton County Weed and Pest District (TCWP) offers several options to assist you with controlling noxious weeds on your property.

        • Free noxious weed consultations - Upon request, we will walk your property with you in search of noxious weeds. If some are found, we will give you recommendations on how to treat them.
        • 50% cost share on herbicides - If you decide to treat the noxious weeds yourself, we will sell you the proper herbicides at a 50% cost share.

For more information on the Teton County Weed & Pest District programs, please call us at 307-733-8419. We are here to help May-September; T-F, 8a.m. to 5p.m. October-April; T-F, 8:00a.m.to 4:00p.m.

4th Grade JHWMA Wildlife Expo


Each year since 2004 the Jackson Hole Weed Management Association has held the Annual JHWMA Wildlife Expo, for Teton County 4th graders. Approximately, 200 students from around the valley arrive at the Jackson Hole & Greater Yellowstone Visitors Center to learn about a chosen theme by JHWMA member agencies. The day kicks off with an explanation of who the JHWMA is and how local agencies and land managers work together to control noxious weeds across all jurisdictional boundaries throughout the valley.

Students then rotate through 5 or 6 stations that last about 15 minutes each. After the stations, students gather outside to review the main points of each station. Agency members donate over 25 items that are given away as prizes. Students who answer questions correctly win hats, shirts, books and other fun stuff. Goody bags are also given out to each student full of information, activity books, pencils, stickers, and more.

Thanks to the JHWMA members, the visitors center for hosting, and the school teachers for making this a success each year!