Research entomologist Torolf Torgersen with microscope. Douglas-fir tussock moth lab work. OR/WA/ID Douglas-fir tussock moth control project. Photo by: Unknown Date: 1974 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: Division of Timber Management, Insect and Disease Control print collection; Regional Office, Portland, Oregon. For more information about this project see: Graham, D.A.; J. Mounts; D. Almas. 1975. 1974 Cooperative Douglas-fir...
Topics: foresthealthprotection, usda, stateandprivateforestry, Forest Entomology, 1974, torolftorgersen,...
Scientists of Research Work Unit (RWU) 2201 at entrance to PNW Forestry Sciences Lab, Corvallis, Oregon. Left to right: Richard R. Mason; Roger B. Ryan; Roy C. Beckwith; Torolf R. Torgersen; Russel G. Mitchell; Boyd E. Wickman (project leader). Photo by: H.G. Paul Date: 1975 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-6019 To learn more about this photo...
Topics: usda, 1975, russelgmitchell, usfs, forestservice, researchentomologist, rogerbryan, forest service,...
Scientists and staff of Research Work Unit (RWU) 2201 at entrance to PNW Forestry Sciences Lab, 1700 Jefferson Way, Corvallis, Oregon. Left to right: Richard R. Mason; R.W. Mortensen (tech.); Roger B. Ryan; Marilyn Thompson Daterman (secretary); unknown person in rear; Roy C. Beckwith; Ron Wiggins (tech.); Russ Mitchell; Torolf R. Torgersen; H. Gene Paul (tech.); Boyd E. Wickman (project leader). Photo by: Sue Golub Date: 1975 Credit: USDA Forest Service, Pacific Northwest Region, State and...
Topics: usda, 1975, suegolub, usfs, forestservice, researchentomologist, rwmortensen,...
Research entomologist Torolf Torgersen (left) and Hank Thompson at the Corvallis Lab. Hank was Project co-developed the Douglas-fir tussock moth virus with Mauro Martignoni. Photo by: Lonne Sower Date: c.1978 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-6021 For additional historical forest entomology photos, stories, and resources see the Western Forest Insect...
Topics: r6, usda, stateandprivateforestry, entomologist, region6, forest service, lonnesower, usda,...
Torolf "Torgy" R. Torgersen, Research Entomologist (left) and H. Gene Paul, Forestry Technician (right) at Bally Mountain log-sampling study plot. Starkey Experimental Forest, Wallowa-Whitman National Forest. Union County, Oregon. Note: Torolf "Torgy" Torgersen managed the effort to digitize and document the Bureau of Entomology and Portland Station photo collections in La Grande, Oregon. Photo by: Patricia Johnson Date: September 1999 Credit: USDA Forest Service, Pacific...
Topics: usda, stateandprivateforestry, 1999, patriciajohnson, logsampling, forestentomology, usfs,...
Research entomologist Torolf Torgersen checking Douglas-fir tussock moth larvae. Mobile lab. La Grande, Oregon. OR/WA/ID Douglas-fir tussock moth control project. Photo by: Unknown Date: 1974 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: Division of Timber Management, Insect and Disease Control print collection; Regional Office, Portland, Oregon. For more information about this project see: Graham, D.A.; J. Mounts; D. Almas. 1975. 1974...
Topics: r6, usda, stateandprivateforestry, insectanddiseasecontrol, sprayproject, region6,...
