1966. Dave McComb with hygrothermograph and shelter used for Douglas-f...
Dave McComb with hygrothermograph and shelter used for Douglas-fir tussock moth research. Corral Creek Area. Modoc National Forest, California. Photo by: Ken H. Wright Date: July 26, 1966 Credit: USDA Forest Se... More
1965. Robert E. Dolph, Jr. checks DFTM larva for mortality after DDT s...
In an area sprayed with DDT, Robert E. Dolph, Jr. project entomologist, checks Douglas-fir tussock moth larva for mortality during the Burns Douglas-fir Tussock Moth Control Project of 1965. Malheur National Fo... More
1974. Research entomologist Russ Mitchell trapping Douglas-fir tussock...
Research entomologist Russ Mitchell trapping Douglas-fir tussock moth near Enterprise, Oregon. Photo by: Unknown Date: 1974 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Prote... More
C.1978. Research entomologist Torolf Torgersen (left) and Hank Thompso...
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 C... More
1947. Johnson Flying Service C-47. Northern Idaha Douglas-fir tussock ...
C-47 airplane used by Johnson Flying Service on the northern Idaho Douglas-fir tussock moth control project. Photo by: Robert L. Furniss Date: 1947 Credit: USDA Forest Service, Pacific Northwest Region, State ... More
1959. At the crest of the Sandia Mountains, Forester Jay Cravens talks...
At the crest of the Sandia Mountains, Forester Jay Cravens talks over a spray run with the pilot and aerial observer. Tussock moth aerial spray job, Sandia Mountains. Cibola National Forest, New Mexico. Photo b... More
1959. Tussock moth timber spray project. Sandia Mountains. Cibola Nati...
Tussock moth timber spray project. Sandia Mountains. Cibola National Forest, New Mexico. Photo by: Starr Jenkins Date: June 1959 Credit: National Archives and Records Administration RG# 95-GP.Records of the For... More
1960. D.R. "Doc" Weaver (left), discusses next spray flight with Al Ri...
Spray pilot D.R. "Doc" Weaver (left) talks over the next run with Al Rivas, director of the Tussock Moth Spray Project and entomologist from the Regional Office, Timber Management Division and with Ranger Harla... More
1960. Spray settles into the canyons after the plane's pass. Tussock m...
Spray settling in the canyons after the plane's pass. Tussock moth spray job, Sandia Mountains, Cibola National Forest, New Mexico. Photo by: Dick Kent Date: June 1960 Credit: National Archives and Records Admi... More
1965. Douglas-fir tussock moth egg mass in rearing cage. Sellwood Lab....
Douglas-fir tussock moth egg mass in rearing cage. Sellwood Lab. Portland, Oregon. Photo by: Dave McComb Date: March 1965 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protect... More
1965. Evaluating cattle for DDT. Douglas-fir tussock moth control proj...
Evaluating cattle for DDT. Douglas-fir tussock moth control project. USFS photographer Jim Hughes in red vest on the right. Altnow Ranch. Harney County, Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest ... More
1965. Benton Howard on right. Silver salmon spawninng bed. Canyon Cree...
Silver salmon spawning bed. Canyon Creek. Burns Douglas-fir tussock moth control project. Malheur National Forest, Oregon. Benton Howard on the right. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, R... More
1965. Helicopters spraying. Douglas-fir tussock moth control project. ...
Helicopters spraying. Douglas-fir tussock moth control project. Malheur National Forest, Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Pro... More
1965. Cattle evaluation. DDT monitoring. Douglas-fir tussock moth cont...
Evaluating cattle for DDT. Douglas-fir tussock moth control project. Altnow Ranch. Burns, Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Pr... More
1965. Fred Cramer, heliport manager. Douglas-fir tussock moth control ...
Fred Cramer, heliport manager. Douglas-fir tussock moth control project. Burns, Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. ... More
1965. Evergreen helicopter with spray rig. Douglas-fir tussock moth co...
Evergreen helicopter with spray rig. Douglas-fir tussock moth control project. Malheur National Forest, Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State and Private Forestry, Fo... More
1965. Evaluating cattle for DDT. Douglas-fir tussock moth control proj...
Evaluating cattle for DDT. Douglas-fir tussock moth control project. Altnow Ranch. Burns, Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Pr... More
1965. Fred Fleetwood and Cheryl. Douglas-fir tussock moth control proj...
Fred Fleetwood and Cheryl. Douglas-fir tussock moth control project headquarters in Burns. Malheur National Forest, Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State and Private ... More
1965. Evergreen spray helicopter taking off. Burns Douglas-fir tussock...
Evergreen spray helicopters taking off. Burns Douglas-fir tussock moth control project. Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Prot... More
1965. Burns Douglas-fir tussock moth control project. Malheur National...
Burns Douglas-fir Tussock Moth Control Project, 1965. Malheur National Forest, Oregon. Photo by: James W. Hughes Taken: June 1965 Credit: U.S. National Archives and Records Administration Reference: RG# 95-GP. ... More
1965. Netting fish to monitor effects of insecticide on aquatic life. ...
Netting fish to monitor effects of insecticide on aquatic life. Douglas-fir tussock moth control project. Malheur National Forest, Oregon. Photo by: Unknown Date: June 1965 Credit: USDA Forest Service, Region 6... More
1965. Loading spray helicopter. Burns Douglas-fir tussock moth control...
Loading spray helicopter. Burns Douglas-fir tussock moth control project. Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collec... More
1965. Joe Altnow. Monitoring cattle for DDT. Douglas-fir tussock moth ...
Joe Altnow. Monitoring cattle for DDT. Douglas-fir tussock moth control project. Altnow Ranch. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Prote... More
1965. Spray helicopters. Burns Douglas-fir tussock moth control projec...
Spray helicopters. Burns Douglas-fir tussock moth control project. Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: R... More
1965. Monitoring the effects of DDt on aquatic life. Douglas-fir tusso...
Monitoring the effects of DDt on aquatic life. Douglas-fir tussock moth control project. Malheur National Forest, Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State and Private Fo... More
1965. Joe Altnow and friend. Evaluating cattle for DDT. Douglas-fir tu...
Joe Altnow and friend. Evaluating cattle for DDT. Douglas-fir tussock moth control project. Altnow Ranch. Harney County, Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State and Pr... More
1965. Monitoring cattle tissue for DDT. Douglas-fir tussock moth contr...
Monitoring cattle tissue for DDT. Douglas-fir tussock moth control project. Altnow Ranch. Harney County, Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State and Private Forestry, F... More
1965. Hiller 12E helicopter makes a spray run as a Bell G-3B observati...
Hiller 12E helicopter makes a spray run as a Bell G-3B observation helicopter flies nearby during Burns Douglas-fir tussock moth control project. Malheur National Forest, Oregon. Photo by: James W. Hughes Date... More
1965. Monitoring effects on aquatic life. DDT chemical loss check. Dou...
Monitoring effects on aquatic life. DDT chemical loss check. Douglas-fir tussock moth control project. Malheur National Forest, Oregon. Photo by: Unknown Date: June 1965 Credit: USDA Forest Service, Region 6, S... More
1965. In an area sprayed with DDT, Robert E. Dolph, Jr. project entomo...
In an area sprayed with DDT, Robert E. Dolph, Jr. project entomologist, checks Douglas-fir tussock moth larva for mortality during the Burns Douglas-fir Tussock Moth Control Project of 1965. Malheur NF, Oregon.... More
1965. Silver salmon from stream. DDT chemical loss check. Douglas-fir ...
Silver salmon from stream. DDT chemical loss check. Douglas-fir tussock moth control project. Malheur National Forest, Oregon. Photo by: Unknown Date: June 1965 Credit: USDA Forest Service, Region 6, State and ... More
1965. USFS photographer James W. Hughes (on corral fence), during catt...
USFS photographer James W. Hughes (on corral fence), during cattle DDT evaluation. Douglas-fir tussock moth control project. Altnow Ranch. Harney County, Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest... More
1965. Spray helicopters taking off. Burns Douglas-fir tussock moth con...
Spray helicopters taking off. Burns Douglas-fir tussock moth control project. Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Co... More
1965. USFS photographer Jim Hughes on fence. Cattle evaluation for DDT...
USFS photographer Jim Hughes on fence. Cattle evaluation for DDT. Douglas-fir tussock moth control project. Altnow Ranch. Burns, Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State... More
1965. Oregon State Game Commission and US Forest Service employees mon...
Oregon State Game Commission and US Forest Service employees monitoring water quality. Burns Douglas-fir tussock moth control project. Oregon. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6,... More
1965. Spray helicopter. Burns Douglas-fir tussock moth control project...
Spray helicopter. Burns Douglas-fir tussock moth control project. Photo by: Unknown Date: 1965 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6,... More
1966. Cloth tree or hammock containing foliage and Douglas fir tussock...
Cloth tree or hammock containing foliage and Douglas fir tussock moth specimen is opened, the branch beaten, and the specimen counted. Douglas-fir tussock moth research. Corral Creek Area. Modoc National Forest... More
1966. Nineteen foot laboratory trailer in field at Corral Creek. Dougl...
Nineteen foot laboratory trailer in field at Corral Creek. Douglas-fir tussock moth research. Corral Creek Area. Modoc National Forest, California. Photo by: Ken H. Wright Date: July 26, 1966 Credit: USDA Fores... More
1966. Twenty-six foot ladder truck used for sampling Douglas-fir tusso...
Twenty-six foot ladder truck used for sampling Douglas-fir tussock moth population. Corral Creek area. Modoc National Forest, California. Photo by: Ken H. Wright Date: August 7, 1966 Credit: USDA Forest Service... More
1966. Twenty-six foot ladder truck used for sampling Douglas-fir tusso...
Twenty-six foot ladder truck used for sampling Douglas-fir tussock moth population. Canal Creek Area. Modoc National Forest, California. Photo by: Ken H. Wright Date: August 26, 1966 Credit: USDA Forest Service... More
1972. Douglas-fir tussock moth egg survey. La Grande, Oregon. (3526066...
Douglas-fir tussock moth egg survey. La Grande, Oregon. Photo by: Unknown Date: October 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: FHP slide collec... More
1972. Douglas-fir tussock moth egg survey. La Grande, Oregon. (3567936...
Douglas-fir tussock moth egg survey. La Grande, Oregon. Photo by: Unknown Date: October 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: FHP slide collec... More
1972. Checking spray deposit cards. Field spray test. Douglas-fir tuss...
Checking spray deposit cards. Field spray test. Douglas-fir tussock moth control. Eastern Oregon. Photo by: Unknown Date: July 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Heal... More
1972. Field spray test for Douglas-fir tussock moth control. La Grande...
Field spray test for Douglas-fir tussock moth control. La Grande, Oregon. Photo by: Unknown Date: July 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collectio... More
1972. Douglas-fir tussock moth egg survey. La Grande, Oregon. (3526067...
Douglas-fir tussock moth egg survey. La Grande, Oregon. Photo by: Unknown Date: October 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Fo... More
1972. Douglas-fir tussock moth egg survey. La Grande, Oregon. (3620891...
Douglas-fir tussock moth egg survey. La Grande, Oregon. Photo by: Unknown Date: 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: Photo files. Sandy, Oreg... More
1972. Spray deposit card. Field spray test. Douglas-fir tussock moth c...
Spray deposit card. Field spray test. Douglas-fir tussock moth control. La Grande, Oregon. Photo by: Unknown Date: July 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Prot... More
1972. Spray deposit card. Field spray test. Douglas-fir tussock moth c...
Spray deposit card. Field spray test. Douglas-fir tussock moth control. La Grande, Oregon. Photo by: Unknown Date: July 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Prot... More
1972. Field spray test for Douglas-fir tussock moth control. La Grande...
Field spray test for Douglas-fir tussock moth control. La Grande, Oregon. Photo by: Unknown Date: July 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collectio... More
1972. Field spray test for Douglas-fir tussock moth control. La Grande...
Field spray test for Douglas-fir tussock moth control. La Grande, Oregon. Photo by: Unknown Date: July 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collectio... More
1972. Field spray test for Douglas-fir tussock moth control. La Grande...
Field spray test for Douglas-fir tussock moth control. La Grande, Oregon. Photo by: Unknown Date: July 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collectio... More
1972. Field spray test for Douglas-fir tussock moth control. La Grande...
Field spray test for Douglas-fir tussock moth control. La Grande, Oregon. Photo by: Unknown Date: July 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collectio... More
1972. Douglas-fir tussock moth population survey. La Grande, Oregon. (...
Douglas-fir tussock moth population survey. La Grande, Oregon. Photo by: Unknown Date: October 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Regio... More
1972. Marking sample plot. Douglas-fir tussock moth egg survey. La Gra...
Marking sample plot. Douglas-fir tussock moth egg survey. La Grande, Oregon. Photo by: Unknown Date: October 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Col... More
1972. Douglas-fir tussock moth egg survey. La Grande, Oregon. (3567936...
Douglas-fir tussock moth egg survey. La Grande, Oregon. Photo by: Unknown Date: October 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Fo... More
1972. Douglas-fir tussock moth egg survey. La Grande, Oregon. (3567937...
Douglas-fir tussock moth egg survey. La Grande, Oregon. Photo by: Unknown Date: October 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: FHP slide collec... More
1973. Checking spray apparatus. Douglas-fir tussock moth control. (360...
Checking spray apparatus. Douglas-fir tussock moth control. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Forest... More
1973. Douglas-fir tussock moth biocontrol virus. (36339869124)
Douglas-fir tussock moth biocontrol virus. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Forest Health Protectio... More
1973. Douglas-fir tussock moth biocontrol polyhedro virus under a ligh...
Douglas-fir tussock moth biocontrol polyhedro virus under a light microscope. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection... More
1973. Chemical gauge. Douglas-fir tussock moth control. (35935718731)
Chemical gauge. Douglas-fir tussock moth control. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Forest Health P... More
1973. Bio-Film. Spreader-sticker for Agricultural Sprays. Colloidal ad...
Bio-Film. Spreader sticker for Agricultural Sprays. Colloidal adjuvant. Label. Douglas-fir tussock moth control test. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Fores... More
1973. Chemagro Dylox 1.5 oil insecticide label. Douglas-fir tussock mo...
Chemagro Dylox 1.5 oil insecticide label. Douglas-fir tussock moth control test. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collect... More
1973. Insecticide storage tank. Douglas-fir tussock moth control. La G...
Insecticide storage tank. Douglas-fir tussock moth control. La Grande Fire Center, Oregon. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protectio... More
1973. Bell 205 used for Douglas-fir tussock moth control. (35899367532...
Bell 205 used for Douglas-fir tussock moth control. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Forest Health... More
1973. Collecting larvae, pre-spray. Douglas-fir tussock moth control. ...
Collecting larvae, pre-spray. Douglas-fir tussock moth control. Photo by: Dave McComb Date: June 18, 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection:... More
1973. 100 branches, pre-spray. Background foliage. Plot Z4. Douglas-fi...
100 branches, pre-spray. Background foliage. Plot Z4. Douglas-fir tussock moth control. Photo by: Dave McComb Date: June 18, 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health... More
1973. Collecting larvae, pre-spray. Douglas-fir tussock moth control. ...
Collecting larvae, pre-spray. Douglas-fir tussock moth control. Photo by: Dave McComb Date: June 18, 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection:... More
1973. Abbott Dipel Bacillus thuringiensis (Bt) biological insecticide ...
Abbott Dipel Bacillus thuringiensis (Bt) biological insecticide label. Douglas-fir tussock moth control test. Photo by: Unknown Date: July 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry,... More
1972. Douglas-fir tussock moth egg survey. La Grande, Oregon. (3620891...
Douglas-fir tussock moth egg survey. La Grande, Oregon. Photo by: Unknown Date: 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: Photo files. Sandy, Oreg... More
1972. Douglas-fir tussock moth egg survey. La Grande, Oregon. (3581573...
Douglas-fir tussock moth egg survey. La Grande, Oregon. Photo by: Unknown Date: 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: Photo files. Sandy, Oreg... More
1972. Flagging spray helicopter. Douglas-fir tussock moth spray tests....
Flagging spray helicopter. Douglas-fir tussock moth spray tests. La Grande, Oregon. Photo by: Unknown Date: July 1972 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.... More
1973. Douglas-fir tussock moth polyhedron single rod virus under an el...
Douglas-fir tussock moth polyhedron single rod virus under an electron microscope. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Colle... More
1973. Douglas-fir tussock moth larva killed by virus. (36339869584)
Douglas-fir tussock moth larva killed by virus. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Forest Health Prot... More
1973. Improper spray application; spraying while turning. Douglas-fir ...
Improper spray appliction; spraying while turning. Douglas-fir tussock moth control. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Co... More
1973. McCall Oil Company delivery. Douglas-fir tussock moth control. L...
McCall Oil Company delivery. Douglas-fir tussock moth control. La Grande Fire Center, Oregon. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protec... More
1973. Douglas-fir tussock moth ecology study. (36362353173)
Douglas-fir tussock moth ecology study. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Forest Health Protection s... More
1973. Douglas-fir tussock moth biocontrol virus under an electron micr...
Douglas-fir tussock moth biocontrol virus under an electron microscope. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Regi... More
1973. McCall Oil Company delivery. Douglas-fir tussock moth control. L...
McCall Oil Company delivery. Douglas-fir tussock moth control. La Grande Fire Center, Oregon. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protec... More
1973. Insecticide sample. Douglas-fir tussock moth control test. (3636...
Insecticide sample. Douglas-fir tussock moth control test. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Forest ... More
1973. Loading spray helicopter. Douglas-fir tussock moth control. (360...
Loading spray helicopter. Douglas-fir tussock moth control. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Fores... More
1973. Putting out spray cards. Douglas-fir tussock moth control. (3633...
Putting out spray cards. Douglas-fir tussock moth control. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Forest ... More
1973. Gauges for measuring chemicals. Douglas-fir tussock moth control...
Gauges for measuring chemicals. Douglas-fir tussock moth control. La Grande Fire Center, Oregon. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Pro... More
1973. McCall Oil Company delivery. Douglas-fir tussock moth control. L...
McCall Oil Company delivery. Douglas-fir tussock moth control. La Grande Fire Center, Oregon. Photo by: Unknown Date: 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protec... More
1973. Dow Zectran FS 15 insecticide label. Douglas-fir tussock moth co...
Dow Zectran FS 15 insecticide label. Douglas-fir tussock moth control test. Photo by: Unknown Date: June 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collect... More
1973. Douglas-fir tussock moth population sampling. (36069277625)
Douglas-fir tussock moth population sampling. Photo by: Dave McComb Date: June 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Forest Heal... More
1973. Russ Christiansen collecting egg masses. Douglas-fir tussock mot...
Russ Christiansen collecting egg masses. Douglas-fir tussock moth nucleopolyhedrosis virus study. Photo by: Dave McComb Date: June 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest... More
1973. Russ Christiansen collecting egg masses. Douglas-fir tussock mot...
Russ Christiansen collecting egg masses. Douglas-fir tussock moth nucleopolyhedrosis virus study. Photo by: Dave McComb Date: June 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest... More
1973. Measuring branch for 18" sample area. Douglas-fir tussock moth p...
Measuring branch for 18" sample area. Douglas-fir tussock moth population sampling. Photo by: Dave McComb Date: June 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protect... More
1973. Douglas-fir tussock moth population sampling. (35935708621)
Douglas-fir tussock moth population sampling. Photo by: Dave McComb Date: June 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Forest Heal... More
1973. Douglas-fir tussock moth population sampling. (36069276285)
Douglas-fir tussock moth population sampling. Photo by: Dave McComb Date: June 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Forest Heal... More
1973. Douglas-fir tussock moth egg survey. (35935709481)
Douglas-fir tussock moth egg survey. Photo by: Dave McComb Date: June 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Forest Health Prote... More
1973. Douglas-fir tussock moth population sampling. (35935711041)
Douglas-fir tussock moth population sampling. Photo by: Dave McComb Date: June 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Forest Hea... More
1973. Dowanol glycol ether. Douglas-fir tussock moth control test. (36...
Dowanol glycol ether. Douglas-fir tussock moth control test. Photo by: Unknown Date: July 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, ... More
1973. Russ Christianson. Douglas-fir tussock moth population sampling....
Russ Christianson. Douglas-fir tussock moth population sampling. Photo by: Dave McComb Date: June 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Re... More
1973. Spray equipment from the Equipment Development Center in Missoul...
Spray equipment from the Equipment Development Center in Missoula, Montana. Douglas-fir tussock moth control. Photo by: Unknown Date: July 1973 Credit: USDA Forest Service, Region 6, State and Private Forestry,... More
1974. DDT mixing plant. Douglas-fir tussock moth control project. Wall...
DDT mixing plant. Douglas-fir tussock moth control project. Walla Walla, Washington. Photo by: Unknown Date: 1974 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Co... More
1974. DDT mixing plant. Douglas-fir tussock moth control project. Wall...
DDT mixing plant. Douglas-fir tussock moth control project. Walla Walla, Washington. Photo by: Unknown Date: 1974 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Co... More
1974. Cleaning up an insecticide spill, burying chemicals. Douglas-fir...
Cleaning up an insecticide spill, burying chemicals. Douglas-fir tussock moth control project. Colville Reservation. Photo by: Unknown Date: 1974 Credit: USDA Forest Service, Region 6, State and Private Forest... More
1974. DDT mixing plant. Douglas-fir tussock moth control project. Wall...
DDT mixing plant. Douglas-fir tussock moth control project. Walla Walla, Washington. Photo by: Unknown Date: 1974 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Col... More
1974. DDT mixing plant. Douglas-fir tussock moth control project. Wall...
DDT mixing plant. Douglas-fir tussock moth control project. Walla Walla, Washington. Photo by: Unknown Date: 1974 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Col... More