File:1963. Spray tank on Bell G-2 helicopter being refilled with Bt mixture at helispot. Field test of Bacillus thuringiensis for western hemlock looper control. Naselle, Washington. (33901483504).jpg
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[edit]Description1963. Spray tank on Bell G-2 helicopter being refilled with Bt mixture at helispot. Field test of Bacillus thuringiensis for western hemlock looper control. Naselle, Washington. (33901483504).jpg |
Spray tank on Bell G-2 helicopter being refilled with Bt mixture at helispot. Field test of Bacillus thuringiensis for 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-2839 For more information about this 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. Spray tank on Bell G-2 helicopter being refilled with Bt mixture at helispot. Field test of Bacillus thuringiensis for 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@N05/33901483504 (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. |
8 May 2018
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