1935. Treating ponderosa pine infested with Dendroctonus brevicomis on Emergency Conservation Work (ECW) control project. Warm Springs Indian Reservation, Oregon. (36749515822)

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Description: Treating ponderosa pine infested with Dendroctonus brevicomis on Emergency Conservation Work (ECW) control project. Warm Springs Indian Reservation, Oregon. Photo by: F.P. Keen Date: March 28, 1935 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-278 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: wfiwc.org/content/history-and-resources Image provided by USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth. Date: 28 March 1935, 11:11. Source: 1935. Treating ponderosa pine infested with Dendroctonus brevicomis on Emergency Conservation Work (ECW) control project. Warm Springs Indian Reservation, Oregon.. Author: R6, State & Private Forestry, Forest Health Protection.