File:1955. Balsam woolly adelgid on Pacific silver fir. Note wool secreting from dorsal side of adult. Mt. St. Helens, Washington. (39220551415).jpg
![File:1955. Balsam woolly adelgid on Pacific silver fir. Note wool secreting from dorsal side of adult. Mt. St. Helens, Washington. (39220551415).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/c/c3/1955._Balsam_woolly_adelgid_on_Pacific_silver_fir._Note_wool_secreting_from_dorsal_side_of_adult._Mt._St._Helens%2C_Washington._%2839220551415%29.jpg/463px-1955._Balsam_woolly_adelgid_on_Pacific_silver_fir._Note_wool_secreting_from_dorsal_side_of_adult._Mt._St._Helens%2C_Washington._%2839220551415%29.jpg?20180507021131)
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[edit]Description1955. Balsam woolly adelgid on Pacific silver fir. Note wool secreting from dorsal side of adult. Mt. St. Helens, Washington. (39220551415).jpg |
Balsam woolly adelgid on Pacific silver fir. Note wool secreting from dorsal side of adult. Mt. St. Helens, Washington. Photo by: R.B. Pope Date: August 1, 1955 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-1022 For more about the balsam woolly adelgid see: Ragenovich, I.R. and R.G. Mitchell. 2006. Balsam Woolly Adelgid. Forest Insect and Disease Leaflet 118. USDA Forest Service, available here: <a href="https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/fsbdev2_043667.pdf" rel="nofollow">www.fs.usda.gov/Internet/FSE_DOCUMENTS/fsbdev2_043667.pdf</a> 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 additional historic forest entomology photos, stories, and resources see the Western Forest Insect Work Conference site: <a href="http://wfiwc.org/content/history-and-resources" rel="nofollow">wfiwc.org/content/history-and-resources</a> Image provided by USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection: <a href="https://www.fs.usda.gov/main/r6/forest-grasslandhealth" rel="nofollow">www.fs.usda.gov/main/r6/forest-grasslandhealth</a>
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Source | 1955. Balsam woolly adelgid on Pacific silver fir. Note wool secreting from dorsal side of adult. Mt. St. Helens, Washington. | ||||
Author | R6, State & Private Forestry, Forest Health Protection |
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[edit]Public domainPublic domainfalsefalse |
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This image or file is a work of a United States Department of Agriculture employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.
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This image was originally posted to Flickr by USDA Forest Service at https://flickr.com/photos/151887236@N05/39220551415 (archive). It was reviewed on 7 May 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the Public Domain Mark. |
7 May 2018
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