Keith Sprengel measuring DBH. Long-term mountain pine beetle thinning study. California Gulch study area, Oregon. Photo by: Beth Willhite Date: c.2007 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: Aerial Survey Program collection. Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
Topics: mountainpinebeetle, Pine Bark Beetles, foresthealthprotection, usda, dbh, stateandprivateforestry,...
Warren V. Benedict with mountain pine beetle damage in lodgepole pine. Bald Mountain, Fremont National Forest, Oregon. For more, see: Dolph, Robert E. 1968. Mountain pine beetle damage in the Pacific Northwest, 1955-1966. USDA Forest Service, Pacific Northwest Region, Division of Timber Management, Insect and Disease Control Branch. Portland, Oregon. 36 p. Photo by: Robert E. Dolph Date: September 1966 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection....
Topics: id529, r6, fremontnationalforest, usda, stateandprivateforestry, treedamage,...
Keith Sprengel - reference tree monument. Long-term mountain pine beetle thinning study. California Gulch study area, Oregon. Photo by: Beth Willhite Date: c.2007 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: Aerial Survey Program collection. Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
Topics: r6, usda, stateandprivateforestry, study, californiagulch, foresthealth, monument, region6,...
Dead lodgepole pine and young reproduction. Munson Plateau. Crater Lake National Park, Oregon. Photo by: F.P. Keen Date: 1934 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Bureau of Entomology Collection; La Grande, Oregon. Image: BUR-8723 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...
Topics: divisionofforestinsectinvestigations, r6, usda, stateandprivateforestry, deadtrees, lodgepolepine,...
Benton Howard (left) and Warren V. Benedict looking at mountain pine beetle damage in lodgepole pine. Bald Mountain, Silver Lake Ranger District, Fremont National Forest, Oregon. For more, see: Dolph, Robert E. 1968. Mountain pine beetle damage in the Pacific Northwest, 1955-1966. USDA Forest Service, Pacific Northwest Region, Division of Timber Management, Insect and Disease Control Branch. Portland, Oregon. 36 p. Photo by: Robert E. Dolph Date: September 1966 Credit: USDA Forest Service,...
Topics: r6, fremontnationalforest, usda, stateandprivateforestry, treedamage, insectanddiseasecontrol,...
Long-Bell tract after light burning. Klamath Indian Reservation. Photo by: F.P. Keen Date: July 23, 1923 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Bureau of Entomology, F.P. Keen Collection; La Grande, Oregon. Image: FPK-49 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...
Topics: divisionofforestinsectinvestigations, r6, usda, stateandprivateforestry, tree, stand, truck,...
G.M. Thomas examining Ips brood for disease organisms. John Day, Oregon. Photo by: G.M. Thomas Date: July 1957 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-1682 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...
Topics: 1957, disease, foresthealthprotection, pacificnorthwestregion, usda, stateandprivateforestry, Pine...
Keith Sprengel with increment core. Long-term mountain pine beetle thinning study. California Gulch study area, Oregon. Photo by: Beth Willhite Date: c.2007 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: Aerial Survey Program collection. Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
Topics: barkbeetle, westsideservicecenter, Pine Bark Beetles, foresthealthprotection, usda,...
Stagnated, pole-size ponderosa pine stand thinned to relieve competition, improve vigor, and reduce beetle susceptibility. Photo by: James W. Hughes Date: May 1966 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: Division of Timber Management, Insect and Disease Control Branch Collection; Regional Office, Portland, Oregon. Image: 516478 Note: 8x10" photo accompanied by "Photographic Submission" paperwork stamped by the WO with...
Topics: r6, usda, stateandprivateforestry, insectanddiseasecontrol, tree, foresthealth, region6,...
High stand density around a large sugar pine contributes to decreased tree vigor and influences behavior of mountain pine beetles. Note: "As sugar and western white pines get larger and older, they run considerable risk of becoming vulnerable to mountain pine beetle infestation. Management activities that promote and maintain pine vigor minimize this risk. Thinning stands with sugar or western white pine components or creating desirable spacing around individual five-needle pines within...
Topics: r6, usda, stateandprivateforestry, thin, donaldjgoheen, region6, highdensity, mountainpinebeetle,...
Location of minimum recording thermometers on ponderosa pine trees in the 1938-1939 temperature study. Photo by: F.P. Keen and J. Whiteside Date: April 1939 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-442 To learn more about this photo collection see: Wickman, B.E., Torgersen, T.R. and Furniss, M.M. 2002. Photographic images and history of...
Topics: divisionofforestinsectinvestigations, r6, usda, stateandprivateforestry, study, jwhiteside, tree,...
