1972. Douglas-fir tussock moth egg survey. La Grande, Oregon.
Douglas-fir tussock moth egg survey. La Grande, Oregon.
Photo by: Unknown
Date: October 1972
Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.
Source: Forest Health Protection slide collection; Regional Office, Portland, Oregon.
Image provided by USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
1972. Douglas-fir tussock moth egg survey. La Grande, Oregon.
Douglas-fir tussock moth egg survey. La Grande, Oregon.
Photo by: Unknown
Date: October 1972
Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.
Source: Forest Health Protection slide collection; Regional Office, Portland, Oregon.
Image provided by USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth