News
Weed of the Month: Bull/Musk Thistle
This Weed of the Month is a two-for-one deal: we’re covering bull thistle and musk thistle. They have a lot in common, from bright purple flowers to pesky spikes, with a few key differences we’ll highlight. Their most important similarities? They won’t stand a chance against you after you’re done reading.
Weed vs. Invasive Plant
We’re often asked: what’s the difference between weeds and invasive plants? They’re both unwanted, often tough to remove, and we offer tips for control and extermination for both. With so many overlaps, it can be confusing to tell the difference. We’re here to help spell out what makes a weed a weed, what makes an invasive plant an invader, and how to tell the difference.
Weed of the Month: Skeletonleaf Bursage
For this Weed of the Month, we’re laying bare skeletonleaf bursage—bones and all. Although it’s a native, it competes with crops and can cause severe allergic reactions. We’ve got the tips and tricks to managing and eliminating this pest.
PlayCleanGo Week 2025
Help us celebrate PlayCleanGo Week this year from June 7–14!PlayCleanGo is a national campaign dedicated to protecting our wild lands from the spread of invasive species. It encourages outdoor recreationists to reduce the spread of dirt, seeds, and burs from noxious weeds during regular outdoor activities. The PlayCleanGo campaign works tirelessly to advocate for North America’s lands and waters by empowering people to take simple, proactive steps—like thoroughly cleaning mud and debris from gear, clothing, shoes, tires, and pets before and after outdoor adventures. Looking for inspiration on how you can protect public lands this summer? Follow us on social media throughout the week as we partner with conservation agencies across the country to share the top ways to #PlayCleanGo in our regions. When we commit to making small changes in how we prepare for and leave activities on public lands, we can make a big impact—preserving our parks, forests, rivers, lakes, and waterways for future generations to enjoy.
2025 Tick Blitz Results and Expanding Wyoming's First Tick Surveillance Program
The 2025 Tick Blitz, held in Teton County on May 16–17, yielded impressive results! Our team was thrilled to work alongside dedicated community citizen scientists who volunteered their time to help advance our understanding of tick phenology and abundance locally. Check out the results from our two-day sprint to collect as many ticks as possible within 48 hours!
Mosquito Control Awareness Week: Valent Biosciences Field Cage Trial Results in Mosquito Insecticide Resistance
West Nile Virus is the major mosquito-borne disease in the state of Wyoming. One element of our District's Integrated Mosquito Management Plan (IMM) is the use of adulticides for the control of adult mosquitoes. Currently, there are limited modes of action available for their use as adulticides. This has resulted in an alarming degree of insecticide resistance in mosquitoes, particularly in vector species such as Culex tarsalis. Explore how abundance of West Nile Virus has exploded in recent years, the results of our field cage trials with Valent Biosciences and evidence of the resistant populations in Teton County, how resistance develops in mosquitoes, the types of resistance, and how our team prevents, detects, and manages resistance once found.
Weed of the Month: Sulfur Cinquefoil
For this Weed of the Month, we’re calling out the black sheep of the cinquefoil family: the sulfur cinquefoil. Though there are desirable native cinquefoil species, the sulfur cinquefoil is a tenacious invader—it can push out native plants and even other invasive species! Luckily, we’ll help you come out on top.
CABI & BBCA Facilities Tour
Our research and work at Teton County Weed and Pest is fostering international connections! Following a recent NAISMA Conference, Entomologist, Mikenna Smith, was invited to expand our relationships with international scientists and tour research facilities at CABI Switzerland & BBCA (Biotechnology and Biological Control Agency) in Italy. Both CABI and BBCA are recognized leaders in invasive species management, respectively, with extensive credentials in biological control research and implementation. This trip, funded by the WWPC Bio Control Steering Committee & Teton County Weed & Pest District enabled our team to expand and foster meaningful relationships that benefit our work.
Weed of the Month: Bull/Musk Thistle
This Weed of the Month is a two-for-one deal: we’re covering bull thistle and musk thistle. They have a lot in common, from bright purple flowers to pesky spikes, with a few key differences we’ll highlight. Their most important similarities? They won’t stand a chance against you after you’re done reading.
Weed of the Month: Bittersweet Nightshade
For this Weed of the Month, we’re bringing bittersweet nightshade into the light. Here are some tips for identifying and managing infestations to protect your family, pets, and livestock from this toxic invader.