File:1948. Douglas-fir and white fir defoliation. Tupper area. Umatilla NF, OR. (33113320930).jpg
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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 |
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| Source | 1948. Douglas-fir and white fir defoliation. Tupper area. Umatilla NF, OR. |
| Author | R6, State & Private Forestry, Forest Health Protection |
Licensing[edit]
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This image is a work of the Forest Service of the United States Department of Agriculture. As a work of the U.S. federal government, the image is in the public domain.
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| current | 21:51, 26 June 2017 | | 1,343 × 1,082 (376 KB) | Kingofthedead (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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