File:1920. Western pine beetle insect cage on ponderosa pine. Jenny Creek, Oregon. (38166361826).jpg
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Western pine beetle insect cage on ponderosa pine. Type of muslin cage erected about the base of healthy yellow pine tree to force attack of western pine beetle. Bark infested by the beetles placed inside the cage. When the adults emerge, they attack the caged portion of the trunk. These attacks did not kill tree but set up attraction which resulted in drawing other D. brevicomis from the field to attack the portion of the trunk above the cage. The nearest tree containing a brood was approximately 1/2 mile distant from the cage. Similar experiments were conducted at the Pacific Slope Station in 1919. Data of this experiment were submitted under Hopk. U.S. 16200. Jenny Creek, Oregon. Photo by: John E. Patterson Date: 1920 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Bureau of Entomology Collection; La Grande, Oregon. Image: BUR-2249 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 historical 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 | 1920. Western pine beetle insect cage on ponderosa pine. Jenny Creek, Oregon. |
| Author | R6, State & Private Forestry, Forest Health Protection |
Licensing
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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@N05/38166361826 (archive). It was reviewed on 8 May 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the Public Domain Mark. |
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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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| current | 14:36, 8 May 2018 | | 1,226 × 1,861 (493 KB) | OceanAtoll (talk | contribs) | Transferred from Flickr via #flickr2commons |
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