1948. Douglas-fir and white fir defoliation. Tupper area. Umatilla NF, OR. (33113320930)

Defoliation of Douglas-fir and white fir. Tupper area. Umatilla National Forest, Oregon.
Photo by: Walter J. Buckhorn
Date: August 28, 1948
Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection.
Collection: Portland Station Collection; La Grande, Oregon.
Image: PS-776
To learn more about this photo collection see:
Wickman, B.E., Torgersen, T.R. and Furniss, M.M. 2002. Photographic images and history of forest insect investigations on the Pacific Slope, 1903-1953. Part 2. Oregon and Washington. American Entomologist, 48(3), p. 178-185.
For geospatial data collected during annual aerial forest insect and disease detection surveys 1947-present see: www.fs.usda.gov/detail/r6/forest-grasslandhealth/insects-...
For related historic program documentation see:
archive.org/details/AerialForestInsectAndDiseaseDetection...
Johnson, J. 2016. Aerial forest insect and disease detection surveys in Oregon and Washington 1947-2016: The survey. Gen. Tech. Rep. R6-FHP-GTR-0302. Portland, OR: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. 280 p.
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