1973. McCall Oil Company delivery. Douglas-fir tussock moth control test. La Grande Fire Center, Oregon.

McCall Oil Company delivery. Douglas-fir tussock moth control test. 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

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