Contributor
- Frazier, W. A.2
- Vaughan, E. K.2
- Harrison, Autumn Lynn1
- Pacific Northwest Cooperative Extension1
- Pacific Northwest Water Laboratory1
- Raab, Carolyn A.1
- Tomlinson, Joy1
- United States. Forest Service1
- United States. Forest Service. Pacific Southwest Region. Forest Pest Management1
- University Of Idaho. Cooperative Extension System1
- Washington State University. Cooperative Extension1
- Yosemite National Park (Agency : U.S.)1