1. Department of Forest Engineering, Resources, and Management, Forestry and Natural Resources Extension, Oregon State University, Corvallis, OR, USA
2. Department of Forest Engineering, Resources, and Management, Oregon State University, Corvallis, OR, USA
3. US Environmental Protection Agency, Corvallis, OR, USA
4. USDA Forest Service, Region Six, State and Private Forestry, Forest Health Protection, Portland, OR, USA
5. Oregon Department of Forestry, Salem, OR, USA
6. USDA Forest Service, Region Six, State and Private Forestry, Forest Health Protection, Sandy, OR, USA