In an effort to update records, properties that have received mosquito surveillance and/or high priority invasive species control from Teton County Weed & Pest in the past may receive a letter in the mail this week to request written permission to continue control services. Control measures may have been taken in the form of larviciding … Continue reading 2019 Landowner Permission Letter
Every summer the Teton County Weed & Pest District dedicates highly trained staff to study the effectiveness of our mosquito treatments in the Teton County region. We treat mosquitoes to reduce potential human health risks, as well as to reduce the overall nuisance mosquito population. Surveillance of adult and larval mosquitoes supplies detailed information on … Continue reading 2018 Mosquito Update
Jackson Hole Clean Water Coalition Living in Jackson, it can be easy to take for granted the immense natural beauty that surrounds us on a daily basis-from the towering Tetons raising above our valley floor to the seemingly pristine waterways that meander through our collection of small towns. We all have a role to play … Continue reading Protecting our Waterways in Jackson Hole
Invasive Species: Cheatgrass (Bromus tectorum L.) Cheatgrass is an annual or winter annual invasive grass that can grow anywhere from 4-to-30 inches high with dense hairs on its leaf sheathes. Cheatgrass also has an early lifecycle which allows growing to begin immediately after the snow melts. In Teton County, it begins to cure out by … Continue reading Weed of the Month: Cheatgrass Treatment
The Lowdown on Herbicides Always Read the Label Before Applying Herbicides There are currently 19 families of herbicides and thousands of different formulations and brand names available, which can make deciding which product to use seem daunting. To help streamline the process, TCWP only carries products that treat species listed on the State Designated and … Continue reading Herbicides, What to Use and What to Avoid
Never Judge a Plant By the Beauty of its Flower By now you probably know that not all noxious weeds look the part. Some are quite pretty. But weeds are not designated as noxious because of the way they look – it is the way they ACT that counts. Dalmatian and Yellow Toadflax … Continue reading Weeds of the Month: Dalmatian and Yellow Toadflax
2018’s Mosaic – The State of the Tetons Ecosystem Teton County Weed & Pest District’s Perspectives on Invasive Species, written by our own Mark Daluge & Erika Edmiston, featured in this year’s Mosaic highlights the health and maintenance needed to protect the Greater Yellowstone Ecosystem from active and potential invasive species (read the complete article here) KEY … Continue reading Tetons 2020 – Mosaic
Biological control is the introduction of a natural enemy or predator to control an invasive weed or pest. One reason invasive weeds may proliferate so well in a new environment is due to the potential limitation or lack of organisms that will attack or consume that plant. Native species, on the other hand, are in … Continue reading Biological Control in Teton County
Weed of the Month, Number 1: Field Bindweed Field bindweed, a native of Eurasia, is thought to have been introduced into the US through contaminated seed as far back as 1739. This vine species forms a monoculture by climbing and twisting its way up anything and everything keeping other plants from reaching light. Field bindweed is … Continue reading August’s Weeds of the Month: Field Bindweed & Spotted Knapweed
This summer we fielded calls from several frantic landowners who were certain they had giant hogweed growing on their property. Heracleum mantegazzianum is a weed worthy of panic, as its sap causes severe phytophotodermatitis in humans. When skin is exposed to the sap and subsequently exposed to the sun, it will redden, swell, and form … Continue reading Giant Hogweed and Cow Parsnip: Which is Which and Why You Should Care