Teton County Weed & Pest: Guardians of the Ecosystem

Empowering an educated community for responsible stewardship in Teton County, WY.

Services

At Teton County Weed & Pest, we provide a variety of services for residents, landowners, and land managers aimed at promoting prevention, early detection, and treatment of declared or designated invasive plants and pests in Teton County, Wyoming.

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Programs

At Teton County Weed & Pest, we provide a range of programs aimed at promoting prevention, early detection, and treatment of declared or designated noxious weeds and pest in Teton County, Wyoming.

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Three people walking briskly outdoors in a grassy field with trees and buildings in the background, wearing jeans and carrying backpack sprayers.Hands removing a green burr from a black and tan dog's fur near its ear with a red grooming comb.
Person wearing a wide-brimmed hat and backpack sprayer in a grassy field with mountains in the background.Group of four people standing in a grassy valley surrounded by forested mountains under a partly cloudy blue sky.
Six people in green Teton County Weed & Pest District shirts stretching and smiling under a yellow event tent.

Community Outreach & Education

Our community outreach and education programs provide valuable resources and opportunities to learn about invasive species and vector-borne disease management, empowering you to make a difference in protecting our ecosystem - join us in our mission by getting involved today!

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Invasive Plant Directory

Learn about the plant species designated or declared noxious and invasive in Teton County.

Identify an Invasive Plant
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Close-up of a plant with small purple flowers and green heart-shaped leaves in natural sunlight.Dense cluster of small white flowers with thin green stems covering the ground.
Green burdock plant with multiple spiky flower heads topped with small purple florets.Close-up of two pale yellow flowers with dark purple centers and veined petals surrounded by green fuzzy leaves.

Latest Blog Posts

2025 End of Year Report

"Our mission is to protect, manage, and restore ecosystem integrity through comprehensive invasive species and vector-borne disease management - for the benefit of both ecological and human health. While this may sound like a lofty goal, it’s one we pursue every day with dedication and purpose. At the District, delivering the highest level of service to Teton County isn’t just our mission - it’s what we do. In this report you’ll see the many ways our small but mighty team of nine full-time staff and sixteen employees works tirelessly to care for this community. Beyond our “regular responsibilities, we are also proud to have hosted the 81st Wyoming Weed & Pest Annual Conference in October, welcoming more than 150 friends and colleagues from across the state. We extend a special thanks to the Jackson Hole Travel and Tourism Board and the Sustainable Business Leaders program for their generous support, which helped make this outstanding event possible. From integrated invasive species management and West Nile virus prevention, to coordinating with Working Dogs for Conservation in support of our longest-running program - the Snake River Project (est. 2001) - to launching our newest initiative, Tick Blitz, this report highlights the many ways TCWP is working for you. Our team is made up of passionate, driven individuals who care deeply about their neighbors and the ecosystems we all depend on. I’m proud to share their work with you and invite you to learn more, get involved, and discover how we can work together to make Jackson Hole healthier and more resilient today, tomorrow, and for generations to come." - Erika Edmiston, District Supervisor

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Diversifying the Capacity of the District’s Lab to Provide Genetic Identification of Invasive Plants

Historically, the Teton County Weed and Pest Lab served primarily the vector surveillance side — the PEST side — of Weed & Pest. A vital component of any effective vector surveillance program is, of course, species identification (microscopy). At one point, that was the lab’s primary function. As my colleague Mikenna Smith, Entomologist at TCWP, likes to say, the lab was once “a closet with a microscope.” But over time, Mikenna transformed that closet into a functioning laboratory — evolving it to meet the growing needs of a modern vector surveillance program. This included adding qPCR-based pathogen testing and implementing a tick surveillance program.

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Concerns of Impacts to Weed Biocontrol from Mosquito Abatement

Thank you to Mikenna Smith, Teton County Weed and Pest Entomologist, for her contributions to this article from her recent research presentation. Biocontrol and Mosquito Control: Are They at Odds? As an entomologist working in both biological control (biocontrol) of weeds and mosquito abatement, I often find myself in a unique position to explore how these two practices interact. When researching whether mosquito control affects weed biocontrol agents, I found surprisingly little direct research. However, there’s a lot of literature on how mosquito pesticides affect non-target insects in general. That’s what I’ve used to guide this discussion.

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Detecting Tick-Borne Viruses in Wyoming: Better Testing, Better Protection

When ticks test negative for pathogens, how can we be sure the results aren’t compromised by degraded sample quality and technical errors? That question drove a recent project by our team to improve the diagnostic accuracy for tick-borne viruses—and it’s already making a difference for Teton County public health! Thank you to Kelsey Mitchell, Teton County Weed and Pest Biologist, and Mikenna Smith, Teton County Weed and Pest Entomologist, for conducting this research and in preparing this presentation that drives solutions for our community!

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