Netting fish to monitor effects of insecticide on aquatic life. Douglas-fir tussock moth control project. Malheur National Forest, Oregon.
Photo by: Unknown
Date: June 1965
Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.
Collection: Region 6, 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