An aerial treatment of cheat grass will take place in the Halfmoon Lake area this week

PINEDALE, Wyo. (KIFI) – The Pinedale District Ranger, Sublette County Weed and Pest, and other partners will conduct aerial cheat weed spraying on National Forest lands this week.

The Sublette County Weed and Pest contractor will be treating in the Halfmoon Lake area, including drainage of Sweeney Creek, Little Halfmoon and towards Fayette Lake Tuesday and Wednesday, weather permitting.

Although the herbicide used is not harmful to people or animals, those who had planned to recreate in these areas are urged to make alternative plans.

Cheatgrass is a non-native, invasive annual grass that competes with native vegetation for resources. It grows in the space between native plants where it competes for resources, causes an increase in fine fuels and fire frequency, and alters the landscape for obligate sagebrush species. This treatment is part of a landscape-wide project to control cheat grass and limit its spread on native vegetation.

Additional areas in Sublette County will be aerially treated for cheatgrass this fall. Information on aerial processing can be found at


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