File:1963. Light helicopter used for observation of Bt experimental spraying and chemical insecticide control projects. Western hemlock looper control. Naselle, Washington. (34359168850).jpg
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Light helicopter used for observation of Bt experimental spraying and chemical insecticide control projects. Western hemlock looper control. Naselle, Washington. Photo by: Wally C. Guy Date: July 19, 1963 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon Image: PS-2843 For additional information about the control project see: <a href="https://archive.org/details/CAT10507172" rel="nofollow">archive.org/details/CAT10507172</a> Buffam, P.E. 1963. Plan for the technical direction of the 1963 western hemlock looper control project in southwest Washington. USDA Forest Service, Pacific Northwest Region, Division of Timber Management, Insect and Disease Control Branch. 20 p. For more information about the field test see: <a href="https://archive.org/details/CAT92272778" rel="nofollow">archive.org/details/CAT92272778</a> Carolin, V.M. and C.G. Thompson. 1967. Field testing Bacillus thuringiensis for control of western hemlock looper. Research Paper PNW-38. Portland, OR: USDA Forest Service, Pacific Northwest Forest and Range Experiment Station. 26 p. 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="http://www.fs.usda.gov/main/r6/forest-grasslandhealth" rel="nofollow">www.fs.usda.gov/main/r6/forest-grasslandhealth</a>
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| Source | 1963. Light helicopter used for observation of Bt experimental spraying and chemical insecticide control projects. Western hemlock looper control. Naselle, Washington. | |||
| Author | R6, State & Private Forestry, Forest Health Protection |
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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@N05/34359168850 (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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| current | 13:03, 8 May 2018 | | 1,406 × 1,085 (319 KB) | OceanAtoll (talk | contribs) | Transferred from Flickr via #flickr2commons |
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