File:1963. The research crew landed at this spot on Long Island and hiked into the experimental area. Field test of Bacillus thuringiensis for western hemlock looper control. Naselle, Washington. (34743873115).jpg

The research crew landed at this spot on Long Island and hiked into the experimental area. 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-2835

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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