File:1963. One method of inoculating culture dishes with Bt spores, after dilution of material, to determine viable spore concentration. C.G. Thompson pictured. Corvallis, OR. (34581730892).jpg
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One method of inoculating culture dishes with Bacillus thuringiensis (Bt) spores, after dilution of material, to determine viable spore concentration. C.G. Thompson is pictured. Corvallis, Oregon. Photo by: Wally C. Guy Date: November 1963 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon Image: PS-2858 For additional information 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. One method of inoculating culture dishes with Bt spores, after dilution of material, to determine viable spore concentration. C.G. Thompson pictured. Corvallis, OR. |
| Author | R6, State & Private Forestry, Forest Health Protection |
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This image was originally posted to Flickr by USDA Forest Service at https://flickr.com/photos/151887236@N05/34581730892 (archive). It was reviewed on 4 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 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 | 00:02, 4 May 2018 | | 1,820 × 1,364 (194 KB) | MechQuester (talk | contribs) | Transferred from Flickr via #flickr2commons |
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