1932. Aphis abietina, Walk., damage to Sitka spruce. Mora, Washington. (39337315024)

Description:

Summary[edit] Description: Aphis abietina, Walk., damage to Sitka spruce. Mora, Washington. Note: Taxonomy is from 1932 documentation. Photo by: James A. Beal Date: October 1932 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Bureau of Entomology, Portland Station Collection; La Grande, Oregon. Image: PS-75 and BUR-8784 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 Public domainPublic domainfalsefalse. : 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. English | español | 日本語 | македонски | Nederlands | русский | slovenščina | українська | +/− :. Date: 1 January 1932, 00:00. Source: 1932. Aphis abietina, Walk., damage to Sitka spruce. Mora, Washington.. Author: R6, State & Private Forestry, Forest Health Protection.