Arundo and Pampas Grass Herbicide Treatment, Auburn and Folsom Lake State Recreation Areas

Arundo and Pampas Grass Herbicide Treatment, Auburn and Folsom Lake State Recreation Areas

Treat infestations of the Arundo donax (arundo) and pampas grass with a foliar herbicide application at locations along the North Fork of the American River between the Iowa Hill Road crossing in Auburn State Recreation Area and Rattlesnake Bar in Folsom Lake State Recreation Area. This includes infestations along the shoreline of Lake Clementine. A total of about 43 patches of arundo and a dozen patches of pampas grass spread along the North Fork will be treated. Arundo and pampas grass are invasive exotic plant species which harm native plants and habitat and the purpose of the project is to control the spread of these species and eradicate known infestations. The treatment method will be a foliar application of aquatically approved herbicides with active ingredients which include glyphosate and imazapyr. Herbicide recommendations will be obtained from a Pest Control Advisor. All spraying will be conducted under the direction of a certified qualified applicator. The intent is to prevent herbicide spray from entering the river or other water bodies and specific effort will be made to avoid this occurrence. However, because the treatment areas are adjacent to surface water sources, aquatically approved herbicides are being used. Spraying will occur only when conditions will permit avoiding any drift or overspray. Treatments will be conducted in the summer/fall of 2006 and 2007. Follow-up maintenance treatments may occur in subsequent years. All required records on herbicide use will be filed with Placer and El Dorado Counties.

El Dorado, Placer