This project involves both biological and herbicide control of tamarix (salt cedar). Biological control agents (beetles) will be introduced into the tamarix stands. Chemical controls will also be used to ensure stand removal. This project controls invasive species in riparian areas to reduce economic and ecological impacts. These impacts are especially acute in riparian ecosystems. This collaborative effort with Sweetwater County leverages available resources.
2008 Update: Four hundred (400) acres of weed treatments were applied, including the tamarisk and perennial pepperweed treatment along Little Bitter Creek and Red Creek.
2009 Update: The beetles for the biological control of the tamarix in the Bitter Creek has some issues: An early spring collection of adult beetles in Lovell was not successful due to cool wet weather, a subsequent collection never occurred due to a moratorium being placed on any new beetle introductions due to an Audobon Society lawsuit regarding the Southwestern Willow Flycatcher. Bitter Creek is the highest priority for biocontrol and will resume when legal issues are resolved. The total number of acres to be treated is estimated at 300-400 acres. Sweetwater W&P will provide the seasonal crews, the equipment and the biological control components, and chemicals and will do the applications for this project. This project will be incorporated into FY2010.
2010 Update: 150 acres were treated for invasives and one riparian project was completed.
2011 Update: Biological control was released in July 2011. Success of release will be determined after monitoring is done in spring 2012.