McCall Oil Company delivery. Douglas-fir tussock moth control. La Grande Fire Center, Oregon.
Photo by: Unknown
Date: 1973
Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.
Source: Forest Health Protection slide collection; Regional Office, Portland, Oregon.
For more information, see:
Graham, D.A.; J. Mounts; D. Almas. 1975. 1974 Cooperative Douglas-fir tussock moth control project: Oregon, Washington, Idaho. Portland, OR: USDA Forest Service, Pacific Northwest Region. 74 p.
And: USDA-USDI Environmental Statement Cooperative Douglas-fir Tussock Moth Pest Management Plan Idaho Oregon Washington. December 1973. USDA Forest Service. Pacific Northwest Region. Portland, Oregon.
books.google.com/books?id=cJ02AQAAMAAJ&printsec=front... Image provided by USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection:
www.fs.usda.gov/main/r6/forest-grasslandhealth
