1958. Dr. T.W. Childs examining ponderosa pine branch infested by the midge, Retinodiplosis sp. Canyon-Izee Road, Malheur National Forest, Oregon.
Dr. T.W. Childs examining ponderosa pine branch infested by the midge, Retinodiplosis sp. Canyon-Izee Road, Malheur National Forest, Oregon.
Photo by: Wally C. Guy
Date: June 4, 1958
Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection.
Collection: Portland Station Collection; La Grande, Oregon.
Image: PS-2148
For additional historic forest entomology photos, stories, and resources see the Western Forest Insect Work Conference site: wfiwc.org/content/history-and-resources
Image provided by USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
1958. Dr. T.W. Childs examining ponderosa pine branch infested by the midge, Retinodiplosis sp. Canyon-Izee Road, Malheur National Forest, Oregon.
Dr. T.W. Childs examining ponderosa pine branch infested by the midge, Retinodiplosis sp. Canyon-Izee Road, Malheur National Forest, Oregon.
Photo by: Wally C. Guy
Date: June 4, 1958
Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection.
Collection: Portland Station Collection; La Grande, Oregon.
Image: PS-2148
For additional historic forest entomology photos, stories, and resources see the Western Forest Insect Work Conference site: wfiwc.org/content/history-and-resources
Image provided by USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth