Category:Forest entomology

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Subcategories

This category has the following 6 subcategories, out of 6 total.

A

An annotated list of the important North American forest insects (1930) (17 F)

B

Bark beetle control (237 F)

F

Forest entomology in Oregon (1 C, 17 F)

I

Indian forest insects of economic importance (249 F)

M

My Recollections of the First Years in Forest Entomology (29 F)

S

Heinrich Strohmeyer (6 F)

Media in category "Forest entomology"

The following 200 files are in this category, out of 559 total.

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1905. Forest Insect Investigations, Washington, D.C. Left-to-right W.F. Fiske, Phillips, and Jesse L. Webb. (37317667991).jpg 1,345 × 1,025; 305 KB
1906. Forest entomologist Harry Eugene Burke, after a field season in the Yosemite country. Palo Alto, California. (37317666981).jpg 873 × 1,093; 181 KB
1909. Andrew Delmar Hopkins. The father of forest entomology in America. Washington, D.C. (37317672141).jpg 873 × 1,177; 212 KB
1910. Josef Brunner (left) and Jesse L. Webb on a field trip in the northern Rocky Mountains region. (37460296595).jpg 1,320 × 877; 391 KB
1911. Dr. A.D. Hopkins (center) with control crew examining mountain pine beetle infested ponderosa pine. Northeastern Oregon Bark Beetle Control Project. Miner Creek area, Whitman National Forest, near Sumpter, Oregon. (37317664901).jpg 1,429 × 1,019; 574 KB
1911. Entomological Rangers J.D. Riggs (right) and J.J. Sullivan at Cecilville, California, starting on reconnaissance of Salman River country. (37061520430).jpg 875 × 1,317; 320 KB
1911. H.E. Burke (left) Entomological Assistant in charge of the Forest Insect Field Station, and Albert G. Angell, Agent. Yreka, California. (37061519970).jpg 737 × 1,331; 230 KB
1911. L-R F.C. Craighead, George Hofer, and Phil D. Sergent on the summit of the Elkhorn Mountains during a recruise of the control area. Northeastern Oregon Bark Beetle Control Project. (37317660581).jpg 1,334 × 877; 259 KB
1913. A field trip out of the Placerville Station. J.J. Sullivan (left) and P.D. Sergent on a trip up the American River Canyon near Kyburz, California. (37317656701).jpg 871 × 1,159; 416 KB
1914. Cone insect Lonchaea veridana larvae, puparia, adult. Ashland, Oregon. (35836582060).jpg 1,349 × 1,001; 95 KB
1914. Cones from which adult moths have emerged. Barbara colfaxiana. Ashland, Oregon. (26445429099).jpg 1,698 × 1,327; 260 KB
1914. Dioryctria abietella. Larvae, cocoons, and pupae. (37511019434).jpg 1,698 × 1,143; 305 KB
1914. Entomological rangers P.D. Sergent (left) and J.D. Riggs with pack horses and field equipment. Siskiyou Mountains, Oregon. (33983145455).jpg 2,475 × 1,547; 522 KB
1914. Hymenoptera. Callimomidae. Megastigmus pinus. Pupae and adults. Ashland, Oregon. (35039907745).jpg 1,673 × 1,168; 282 KB
1914. Reconnaissance party, head of Williams Canyon. Left-to-right W.D. Edmonston, A.B. Champlain, E.R. Spyer, and J.H. Pollock. Manitou, Colorado. (37061518040).jpg 1,197 × 924; 347 KB
1915. Adult Megastigmus spermatrophus ovipositing in Douglas-fir cone. Ashland, Oregon. (39369378755).jpg 1,067 × 703; 80 KB
1915. Drying cones for study of cone and seed insects. Infested cones are spread on canvas placed in sunlight to dry them of excessive moisture to prevent mold when placed in rearing cages. Ashland, Oregon. (32783582914).jpg 2,224 × 1,465; 311 KB
1915. Early camera used to photograph insects. Bureau of Entomology, Forest Insect Investigations. Ashland, Oregon. (33170228753).jpg 1,522 × 2,417; 556 KB
1915. Hymenoptera. Cynipidae. Cynipid sp. Gall insects in Quercus sp. - white oak. (37511008784).jpg 1,840 × 1,105; 293 KB
1915. Larvae and pupae of Megasitigmus pinus in breeding cells. Ashland, Oregon. (38189904922).jpg 1,547 × 883; 328 KB
1915. Personnel at the Ashland Station. L-R Dr. A.D. Hopkins, Chief of the Division of Forest Insect Investigations (Washington DC); W.E. Glendinning, J.M. Miller, J.E. Patterson, J.D. Riggs, P.D. Sergent, and F.P. Keen. (35971111216).jpg 1,902 × 1,068; 294 KB
1915. Photographic stand designed and built at Pacific Slope Station for photographing small specimens and insects. USDA Bureau of Entomology, Forest Insect Investigations. Ashland, Oregon. (38166376756).jpg 1,070 × 1,664; 229 KB
1916. Adult of Megastigmus pinus ovipositing in young white fir cone. Ashland, Oregon. (39369374785).jpg 2,224 × 1,450; 163 KB
1916. Buprestidae. Melanophila drummondi. Flatheaded fir borer larva, papae in galleries. (34858520636).jpg 785 × 1,208; 190 KB
1916. Curculionidae. Balaninus sp. Larvae in Quercus californica acorns. (36063345802).jpg 1,453 × 1,162; 171 KB
1916. F.Paul Keen inside Dendroctonus brevicomis (western pine beetle) insect study cage used to force beetles to attack a green log. The upper log is infested with bark beetles. Near Ashland, Oregon. (32812307593).jpg 2,193 × 1,468; 322 KB
1916. Hymenotera. Callimomidae. Megastigmus albifrons. Pinus ponderosa. Hymenoptera development. Ashland, Oregon. (37511033144).jpg 1,077 × 725; 106 KB
1916. Lepidoptera. Tischeriidae. Arbutus madrona leaf miner. (36187899176).jpg 1,195 × 1,849; 320 KB
1916. Megastigmus albifrons adult ovipositing eggs in cone. Ashland, Oregon. (39369367655).jpg 956 × 1,567; 202 KB
1916. Monochamus maculosus wood borer larvae in galleries in pine wood. (38189917322).jpg 1,172 × 1,771; 301 KB
1916. P. Sergent with ponderosa pine and Dendroctonus brevicomis (western pine beetle) insect study cage. Muslin cage was used to force beetles to attack freshly-cut yellow pine log. Near Ashland, Oregon. (33469760652).jpg 2,220 × 1,476; 394 KB
1916. Ptinidae larvae. Pinus jeffreyi cone. (26445433699).jpg 1,099 × 1,696; 237 KB
1916. Thysanocnemis larva in Fraxinus sp. seed pods. (37510982374).jpg 1,334 × 1,014; 175 KB
1917. Conference of Bureau of Entomology and U.S. Forest Service men at Ashland, Oregon. (33983148455).jpg 2,508 × 1,440; 326 KB
1917. Conference of Bureau of Entomology and U.S. Forest Service men at Ashland, Oregon. Front row (left to right) F.P. Keen, T. Snyder, and R. Hopping. Back row (left to right) Albert Wagner, J. Miller, and A.J. Jaenicke. (37460297365).jpg 1,749 × 1,141; 451 KB
1917. Hymenoptera. Ichneumonidae. Glypta sp. Seed insects. (37511002344).jpg 1,658 × 1,030; 172 KB
1917. William Douglas Edmonston. Forest entomologist and artist. Colorado Springs, Colorado. (37460296815).jpg 879 × 1,301; 245 KB
1919. Entomological Ranger W.E. Glendinning observes spruce logs on a logging train. Oregon Coast Range. (33299812350).jpg 2,045 × 1,468; 372 KB
1921. Pandora moth (Coloradia pandora) pupae in natural position when they were uncovered in pumice soil. Klamath Indian Reservation. Oregon. (38166249076).jpg 1,661 × 1,061; 492 KB
1922. Compassman at work in the field. Western pine beetle control. Number 3. Southern Oregon Northern California control project. (33479007721).jpg 1,052 × 1,648; 336 KB
1922. Peeling tree on top side to insure complete burning of bark. This tree killed by Ips emarg. for first 6 logs, and the top 6 logs with a fresh attack of Dendroctonus brevicomis. SONC control project. (33607747965).jpg 1,907 × 1,259; 440 KB
1922. Personnel of survey crew Number 2. Fred A. Zumbrunn, F.M. Bodenhamer, and O.J. Hauge. Southern Oregon Northern California beetle control project. (33478718211).jpg 1,907 × 1,228; 705 KB
1922. W.L. Jones and W.G. Durbin at insect control camp number 32. Southern Oregon Northern California control project. (33607809665).jpg 1,189 × 1,783; 400 KB
1923. Area 3 survey crew. O.J. Hauge, Chuck Zumbrunn, and Harry Wise. Southern Oregon Northern California control project. Taken in front of the County Courthouse at N. 3rd and Main. Klamath Falls, Oregon. (35841689882).jpg 956 × 621; 88 KB
1923. Back, left-to-right Russell Pardue, Ranger Jess Elgen, Chester Jones, Walter J. Buckhorn Front Roy McNeil, Oswald Hoage. Southern Oregon Northern California beetle control project. (37166630301).jpg 1,477 × 965; 452 KB
1923. Winter camp. Area 1, Camp 15. L-R S.R. Black, Ernest McCullam, Otis Osborn, Ernest Buck, J.A. Howarth, Jr., Tiny Combest, Hal Ogle, Bernie Zollman. SONC. Crater National Forest. (32764724684).jpg 1,771 × 1,162; 265 KB
1924. Braconid parasites on dead Coloradia pandora (Pandora moth) larva. (35960069880).jpg 868 × 1,030; 90 KB
1924. Coloradia pandora (Pandora moth) full grown caterpillar. Calimus Butte, Oregon. (35548510523).jpg 835 × 1,357; 132 KB
1925. Group of entomologists at Mile-and-a-Half. Kraus, Hofer, Blackman, Henry, Craighead, Edmonston. Kaibab control project. Kaibab NF, AZ. (33705884846).jpg 2,425 × 1,556; 482 KB
1925. Left-to-right J.E. Patterson, H.E. Burke, Person, and Morrow. Stanford University, California. (37265450414).jpg 1,821 × 1,224; 309 KB
1926. F. Paul Keen in express wagon. (37166690901).jpg 622 × 949; 99 KB
1926. Monterey pine weavil damage. Curculionidae. Pissodes radiatae Hopk. (pupal cells within). Pinus radiata. (38221507471).jpg 858 × 1,267; 200 KB
1926. Walter J. Buckhorn (left) and F. Paul Keen. Modoc National Forest, California. (36471929284).jpg 1,837 × 1,309; 943 KB
1926. Walter J. Buckhorn sitting by a 65 inch DBH ponderosa pine. Klamath Indian Reservation. (36471927514).jpg 971 × 1,263; 352 KB
1927. Area 3 survey crew. L-R F.P. Keen, W.J. Buckhorn, and Max England. SONC bark beetle control project. Modoc NF, California. (35038125962).jpg 2,384 × 1,531; 291 KB
1927. Area 3 survey crew. L-R F.P. Keen, W.J. Buckhorn, and Max England. Southern Oregon-Northern California bark beetle control project. Modoc National Forest, California. (34829290822).jpg 1,942 × 1,069; 282 KB
1927. Area 3 survey crew. L-R Max England, F.P. Keen, and W.J. Buckhorn. SONC bark beetle control project. Modoc NF, California. (35203277895).jpg 2,458 × 1,514; 231 KB
1927. Area 3 survey crew. L-R Max England, F.P. Keen, and W.J. Buckhorn. Southern Oregon-Northern California bark beetle control project. Modoc National Forest, California. (34992754645).jpg 1,252 × 1,930; 171 KB
1927. Area 3 survey crew. L-R Max England, W.J. Buckhorn, and F.P. Keen. SONC bark beetle control project. Modoc NF, CA. (35203322335).jpg 2,400 × 1,506; 377 KB
1928. Ergates spiculatus. Western pine sawyer. (34907761331).jpg 551 × 718; 41 KB
1928. Hymenoptera. Pamphiliidae. Acantholydan sp. (Monterey pine sawfly). Pinus radiata. (38163595236).jpg 1,334 × 1,117; 128 KB
1928. Ike Hastings. Survey Crew. Modoc National Forest, California. (33979643026).jpg 1,181 × 1,844; 296 KB
1928. Monterey pine sawfly. Hymenoptera. Pamphiliidae. Acantholyda sp. (34875608362).jpg 1,365 × 1,064; 167 KB
1929. F.P. Keen. Horsefly Unit Camp. SONC control project. (33705886226).jpg 1,515 × 2,433; 340 KB
1929. F.P. Keen. Horsefly Unit Camp. SONC control project. (33890978401).jpg 1,234 × 1,927; 248 KB
1929. Ike Hastings, Phillip C. Johnson, William D. Bedard. Horsefly Unit. Southern Oregon Northern California control project. (33208112363).jpg 954 × 613; 178 KB
1929. Ike Hastings, W.D. Bedard, and P.C. Johnson. Horsefly Unit. Southern Oregon Northern California control project. (33208108163).jpg 948 × 624; 197 KB
1929. Ike Hastings. Horsefly Unit. SONC control project. (33208125373).jpg 1,227 × 1,865; 301 KB
1929. P.C. Johnson. Horsefly Unit. SONC control project. (33208141373).jpg 620 × 950; 109 KB
1929. William D. Bedard. Horsefly Unit. SONC control project. (33635143870).jpg 1,235 × 1,919; 281 KB
1930. Exposed ponderosa pine top with thermometers in place. Slash temperature studies. Klamath Falls, Oregon. (26445192969).jpg 1,883 × 1,175; 488 KB
1930. Harold Weaver (sitting) at control camp. Klamath Indian Reservation. (33597908060).jpg 929 × 1,297; 198 KB
1930. Left to right Alex J. Jaenicke, Lawrence Frizzell, and Clarence Young. Western pine beetle control project. Fremont NF, OR. (33177298354).jpg 1,301 × 929; 253 KB
1930. Shaded ponderosa pine top with thermometers in place. Slash temperature studies. Klamath Falls, Oregon. (38221501681).jpg 1,889 × 1,196; 414 KB
1931. W.J. Buckhorn (left) and Noble at Johnson Prairie. (35203325245).jpg 2,409 × 1,456; 248 KB
1931. Walter J. Buckhorn (left) and Noble at Johnson Prairie (survey crew). (37921610666).jpg 615 × 911; 109 KB
1932. Field Bug Crew. L-R Walter J. Buckhorn, D. Lynch, F.P. Keen, J. Kapitke, and T. Parr. (35618555935).jpg 2,500 × 1,589; 310 KB
1932. Walter J. Buckhorn examines field cage on ponderosa pine Dendroctonus brevicomis Lec. brood trees. Prineville, Oregon. (33983082945).jpg 936 × 1,328; 250 KB
1932. Walter J. Buckhorn examines field cage on ponderosa pine Dendroctonus brevicomis Lec. brood trees. Prineville, Oregon. (34511768440).jpg 914 × 1,307; 271 KB
1933. James A. Beal with climbing spurs and rope, removing bark from Dendroctonus brevicomis (western pine beetle) infested tree for determination of emergence. Sisters, Oregon. (34203638103).jpg 1,483 × 2,082; 636 KB
1933. Nineteen-foot insect tree cage for induced attack and emergence collection. Dendroctonus brevicomis. Modoc National Forest, California. (26445176519).jpg 1,083 × 1,654; 462 KB
1933. P.C. Johnson blazes and numbers tree infested by pine beetles. Lassen National Forest, California. (32744063413).jpg 3,914 × 4,818; 2.46 MB
1934. Ellopia somniaria. Caterpillars on fence post. (34088129933).jpg 917 × 1,281; 131 KB
1934. Hemlock defoliated by sawfly, Neodiprion tsugae Midd. (28268675519).jpg 1,397 × 1,610; 392 KB
1935. Ellopia somniaria. Quercus. (37510625034).jpg 1,050 × 1,359; 189 KB
1935. Special control experiment for Ips oregoni. Pringle Falls, Oregon. (38696712962).jpg 1,242 × 1,706; 321 KB
1935. The ponderous borer. Cerambycidae. Ergates spiculatus larvae. (26445184219).jpg 759 × 941; 80 KB
1936. L-R, back W.J. Buckhorn, F.C. Craighead, A.J. Jaenicke, J.M. Miller, F.P. Keen. Front J.C. Evenden, J.A. Beal, and R.L. Furniss. Conference in Portland, Oregon. (35618555485).jpg 2,392 × 1,531; 277 KB
1936. Portland conference. Left-to-right, back row Walter J. Buckhorn, F.C. Craighhead, A.J. Jaenicke, J.M. Miller, F.P. Keen. Front row J.C. Evenden, J.A. Beal, Robert L. Furniss. Portland, Oregon. (34081275113).jpg 1,976 × 1,358; 1.04 MB
1936. White pine logs infested with Dendroctonus monticolae being decked for burning. Mt. Rainier National Park, Washington. (33339781342).jpg 1,305 × 917; 283 KB
1937. Long horned beetles. Criocephalus asperatus. (34088114123).jpg 1,486 × 961; 79 KB
1937. Oak apple gall. Cynipid gall, Cynips maculipennis, on Quercus garryana. Senator Charles L. McNary's farm, Salem, Oregon. (34728804052).jpg 1,363 × 1,934; 230 KB
1937. Oak apple gall. Cynipid gall, Cynips maculipennis, on Quercus garryana. Senator Charles L. McNary's farm, Salem, Oregon. (34760353041).jpg 1,402 × 1,750; 198 KB
1938. Adult pine sawyer beetle. Cerambycidae. Ergates. (34511771600).jpg 997 × 1,322; 150 KB
1939. 6'x6'x8' screen-covered cage for oviposition study of Burprestis aurulenta. Pack Forest, La Grande, Washington. (34953181176).jpg 1,381 × 1,063; 206 KB
1939. Asemum work butt end of Douglas-fir log. Smith operation, Tillamook Burn, Oregon. (33635199240).jpg 1,369 × 1,081; 254 KB
1939. Celluloid cylindrical insect cage used in overwintering Cylindrocopturus adults. 1939-1940. (34632728700).jpg 1,380 × 1,068; 171 KB
1939. Coleoptera. Curculionidae. Cylindrocopturus. Cylindrocopturus furnissi. Mature larva x10. (38165997516).jpg 1,173 × 1,022; 79 KB
1939. Detail of glass insect cages over individual ambrosia beetle attacks on Douglas-fir. Pack Forest. La Grande, Washington. (34632730900).jpg 637 × 657; 74 KB
1939. Detail of glass insect cages over individual ambrosia beetle attacks on Douglas-fir. Pack Forest. La Grande, Washington. (34632734490).jpg 1,046 × 1,365; 213 KB
1939. Forest tent caterpillar (Malacosoma disstria) larvae on highway fence. Kelso, Washington. (34605530380).jpg 1,390 × 1,081; 141 KB
1939. Forest tent caterpillar (Malacosoma disstria) larvae on mailbox. Kelso, Washington. (33177435164).jpg 1,333 × 1,081; 119 KB
1940. New laboratory living quarters. W.D. Bedard on steps. Pack Forest, La Grande, Washington. (38710120020).jpg 1,317 × 1,033; 223 KB
1940. Spotting crew. Chewaucan Unit. Fremont National Forest, Oregon (33643142406).jpg 1,868 × 1,298; 509 KB
1940. Spotting crew. Chewaucan Unit. Fremont National Forest, Oregon. (33339758602).jpg 1,954 × 1,203; 494 KB
1942. Balsam woolly adelgid (Chermes piceae). Detail of bark surface showing egg masses and wax-covered females on Abies grandis. Sample from Wilsonville, Oregon. (39314838184).jpg 1,143 × 1,327; 348 KB
1942. Balsam woolly adelgid (Chermes piceae; Adelges piceae). Detail of bark surface showing egg masses and wax-covered females on Abies grandis. Sample from Wilsonville, Oregon. (40024542061).jpg 1,085 × 685; 144 KB
1942. Balsam woolly adelgid (Chermes piceae; Adelges piceae). Detail of bark surface showing egg masses and wax-covered females on Abies grandis. Sample from Wilsonville, Oregon. (40024548771).jpg 1,657 × 1,066; 268 KB
1942. Douglas-fir beetle. Coleoptera. Scolytidae. Dendroctonus pseudotsugae Hopk. (34505280220).jpg 754 × 1,262; 102 KB
1942. F. Paul Keen. USDA Bureau of Entomology and Plant Quarantine, Division of Forest Insect Investigations. Portland Lab, Federal Courthouse, Portland, Oregon. (33454840426).jpg 1,402 × 1,944; 217 KB
1942. Flatheaded fir borer. Coleoptera. Buprestidae. Melanophila drummondi Kby. Adult. (34760393061).jpg 1,088 × 1,313; 161 KB
1942. Pine sawyer beetle. Coleoptera Cerambycidae Ergates spiculatus LeC. Adult male. (34760381111).jpg 896 × 1,052; 72 KB
1942. Rachel W. Overing. USDA Bureau of Entomology and Plant Quarantine, Division of Forest Insect Investigations. Portland Lab, Federal Courthouse, Portland, Oregon. (33339724122).jpg 1,360 × 1,962; 220 KB
1942. Robert L. Furniss. USDA Bureau of Entomology and Plant Quarantine, Division of Forest Insect Investigations. Portland Lab, Federal Courthouse, Portland, Oregon. (32681717403).jpg 1,409 × 1,859; 192 KB
1942. W.D. Bedard. USDA Bureau of Entomology and Plant Quarantine, Division of Forest Insect Investigations. Portland Lab, Federal Courthouse, Portland, Oregon. (33339716102).jpg 1,366 × 1,797; 273 KB
1943. California root borer. Prionus californicus. Adult male. (34883352761).jpg 665 × 723; 56 KB
1943. Carpenter ant queen with wings spread. Hymenoptera Formicidae Camponotus. (34505280890).jpg 630 × 470; 32 KB
1945. Author Stewart Holbrook and Axel Brandstrom (USFS). World's largest Douglas-fir, Klootchie Creek area. Clatsop County, Oregon. (34980167746).jpg 1,113 × 1,355; 289 KB
1945. Axel Brandstrom (USFS), Harold Olsen, Walter J. Buckhorn, Robert L. Furniss, and author Stewart Holbrook. World's largest Douglas-fir, Klootchie Creek area. Clatsop County, Oregon. (35020106875).jpg 553 × 740; 138 KB
1945. Axel Brandstrom and Orr examine collecting tray. Hemlock looper control project. Clatsop County, Oregon. (33497002505).jpg 1,344 × 906; 156 KB
1945. Buckhorn putting up spray plot marker. Hemlock looper control project. Clatsop County, Oregon. (32661425930).jpg 516 × 701; 557 KB
1945. Furniss (left) and Buckhorn examine caged hemlock looper larvae. Clatsop County, Oregon. (32887651082).jpg 1,891 × 1,411; 356 KB
1945. Hemlock looper adult male. Lambdina fiscellaria lugubrose. (34170924214).jpg 2,087 × 1,391; 513 KB
1945. Mixing lead arsenate. Hemlock looper control project. Clatsop County, Oregon. (32113674334).jpg 1,444 × 1,111; 214 KB
1945. Orr examines a collecting tray. Hemlock looper control project. Clatsop County, Oregon. (33113384550).jpg 876 × 1,373; 209 KB
1945. Professor "Mac" McDaniels Oregon State University (left) and his son with Walter J. Buckhorn. (36472040844).jpg 1,703 × 1,066; 245 KB
1945. W.J. Buckhorn (left) and R.L. Furniss examining hemlock looper collecting tray. Clatsop County, Oregon. (32661428570).jpg 1,429 × 1,163; 254 KB
1946. Douglas-fir tussock moth cocoons on a Douglas-fir sapling. Troy, Oregon. (39315593434).jpg 1,181 × 1,391; 371 KB
1946. Douglas-fir tussock moth cocoons on twigs of young Douglas-fir. Troy, Oregon. (25154646927).jpg 1,998 × 1,466; 513 KB
1947. Douglas-fir terminal showing Douglas-fir tussock moth larvae and webbing. (39144996845).jpg 1,460 × 1,096; 228 KB
1947. Douglas-fir terminal showing Douglas-fir tussock moth larvae and webbing. (39333236044).jpg 1,218 × 1,081; 222 KB
1947. Douglas-fir terminal showing Douglas-fir tussock moth larvae and webbing. (40011106902).jpg 1,401 × 1,107; 256 KB
1947. Douglas-fir tussock moth cocoon on twig. (28264483539).jpg 1,979 × 1,352; 191 KB
1947. Douglas-fir tussock moth cocoons on twig. (28264478309).jpg 1,434 × 1,030; 115 KB
1947. Douglas-fir tussock moth cocoons. (28264489109).jpg 1,036 × 1,454; 89 KB
1947. Front Teeter; P.C. Johnson. Back R.L. Furniss; S.J. Yuill; D. Isler; D.E. Parker; J.C. Evenden. Tussock moth control project. Idaho. (33983143285).jpg 2,392 × 1,564; 360 KB
1947. Mature Douglas-fir tussock moth larva. (26170256348).jpg 1,091 × 1,409; 179 KB
1947. Mature Douglas-fir tussock moth larva. (26170265128).jpg 1,053 × 1,367; 116 KB
1947. Mature Douglas-fir tussock moth larva. (26170273318).jpg 1,092 × 1,348; 208 KB
1947. Walter J. Buckhorn examines screen used to intercept air-borne Douglas-fir tussock moth larvae. (32616422934).jpg 1,154 × 1,418; 238 KB
1948. Camponotus maculatus vicinus. Major worker. (34974615996).jpg 1,510 × 2,074; 128 KB
1948. Spray boom on Bell helicopter. Gail Thomas (left) and John Woods, Jr. Spruce budworm control project. Kinzua area, Oregon. (32916674601).jpg 1,335 × 1,023; 117 KB
1948. Walter J. Buckhorn (left) and Charles B. Eaton (right). Western spruce budworm control project. Kinzua area, Oregon. (32916675511).jpg 1,292 × 919; 161 KB
1948. Walter J. Buckhorn shooting a line-gun to mark aerial spray block boundaries. Western spruce budworm control project. Kinzua, Oregon. (32091825723).jpg 2,425 × 1,547; 161 KB
1949. Government personnel on western spruce budworm control project. Mt. Hood area, Oregon. (32833568571).jpg 1,366 × 1,120; 318 KB
1949. Mel Hardy contacting weather observers by radio. Western spruce budworm control project. Mt. Hood area, Oregon. (32803376792).jpg 1,418 × 1,133; 171 KB
1950. Dave McComb. Mountain pine beetle control project. Targhee NF, ID. (33558252925).jpg 4,827 × 3,853; 2.18 MB
1950. J.F. Wear operating K-17 camera in Cessna 195. (33422902636).jpg 954 × 1,431; 120 KB
1950. W.J. Buckhorn demonstrates the first step for recovery of hemlock looper eggs. BEPQ. Portland, Oregon. (33335357631).jpg 940 × 1,326; 149 KB
1950. W.K. Coulter inspects egg concentrate for hemlock looper egg recovery. BEPQ. Portland, OR. (33080108630).jpg 935 × 1,318; 126 KB
1952. Flight crew, left-to-right Dave Robinson, Bob Stevens, John Lanz, and unidentified. 1952 Blowdown and Bark Beetle Survey, Oregon. (34753433974).jpg 1,407 × 1,120; 251 KB
1952. List of names on the back of the group shot of "most of the aerial personnel and overhead" on the 1952 Blowdown and Bark Beetle Survey. (34753426944).jpg 1,404 × 1,144; 127 KB
1952. Most of the aerial personnel and overhead on the 1952 Blowdown and Bark Beetle Survey. Oregon. (34753428404).jpg 1,396 × 1,095; 245 KB
1953. 8 year old spruce plantation near Tillamook Head. Spruce weevil beginning to cause damage. J. Trappe is on stump of spruce cut about 1942. Cannon Beach, Oregon. (26245529988).jpg 1,361 × 1,035; 259 KB
1953. A.V. Smyth and V.M. McCowan with screen cages on infested Douglas-fir. Weyerhaeuser. Millicum Forest. Coos Bay, OR. (33497892115).jpg 1,007 × 1,339; 291 KB
1953. Doctors Lodewick (Weyerhaeuser Timber Company) and Wright (Pacific Northwest Forest and Range Experiment Station). Deterioration of beetle-killed Douglas-fir analysis. Millicoma Forest. Coos County, Oregon. (34853930152).jpg 1,327 × 997; 258 KB
1953. Meeting of Forest Insect Research (FIR) chiefs in Washington DC. (35124542566).jpg 1,422 × 1,119; 257 KB
1954. L-t-R W.K. Coulter, G.E. Dixon, G.P. Berlyn. Spruce budworm research crew. (33463696295).jpg 1,399 × 967; 343 KB
1954. Miles Compton (OSBF) with 25 year old Sitka spruce stunted by many weevil attacks. Young's River Plantation. Seaside, OR. (33497936775).jpg 1,035 × 1,347; 231 KB
1954. Miles Compton showing two years normal growth on a 10 year old Sitka spruce. Young's River Plantation. Seaside, OR. (33456756056).jpg 1,046 × 1,340; 192 KB
1955. Adult (A), eggs (E), and woolly exudation (C) of balsam woolly adelgid (Chermes sp.) on Pacific silver fir. Toutle River, Washington. (40087022942).jpg 1,719 × 1,417; 304 KB
1955. Adult of Ceromasia auricaudata T.T., an important parasite of the western spruce budworm. Posed at the Sellwood Lab, Portland, Oregon. (34813216846).jpg 1,034 × 1,343; 168 KB
1955. Adult, eggs, and "wool" of balsam woolly adelgid (Chermes sp.) on Pacific silver fir (Abies amabilis). Mt. St. Helens, Washington. (39220553495).jpg 1,351 × 1,053; 200 KB
1955. Aerial survey safety training. G.M. Thomas demonstrates a practice letdown, assuming parachute has caught in a tree; he is hanging from parachute risers to simulate this condition. Sellwood Lab. Portland, Oregon. (33307601892).jpg 1,070 × 1,343; 146 KB
1955. Balsam woolly adelgid (Chermes sp.) woolly exudation on subalpine fir (Abies lasiocarpa). Government Camp, Oregon. (39220561495).jpg 1,329 × 1,043; 361 KB
1955. Balsam woolly adelgid on Pacific silver fir. Note wool secreting from dorsal side of adult. Mt. St. Helens, Washington. (39220551415).jpg 1,045 × 1,353; 231 KB
1955. Binocular microscope to identify larvaevorid puparia from spruce budworm rearing. V.M. Carolin at microscope. Field Lab. Union, Oregon. (32620203544).jpg 1,351 × 1,047; 176 KB
1955. Binocular microscope used to identify larvaevorid puparia from spruce budworm rearing. W.K. Coulter at microscope. Field lab. Union, Oregon. (33422970556).jpg 1,365 × 1,051; 179 KB
1955. Cages used for caging infested and green Douglas-fir logs. J.A. Beal in foreground. Weyerhaeuser Timber Company research project. Coos Bay, Oregon. (32654112594).jpg 1,363 × 1,047; 323 KB
1955. Full grown fall webworm larva after leaving web to find pupation site in soil. Hyphantria cunea (Drury). Portland, Oregon. (34297872014).jpg 1,371 × 1,011; 148 KB
1955. Halisidota argentata. Detail of larva on Douglas-fir. (26245439518).jpg 1,345 × 1,047; 149 KB
1955. Halisidota argentata. Silver-spotted tiger moth cocoon. (26245419408).jpg 1,365 × 1,065; 177 KB
1955. Halisidota argentata. Silver-spotted tiger moth. Newly formed pupa. (26245436568).jpg 1,037 × 1,325; 68 KB
1955. Halisidota argentata. Silver-spotted tiger moth. Pupa, dorsal view. (26245429218).jpg 1,445 × 1,167; 92 KB
1955. Halisidota argentata. Silver-spotted tiger moth. Pupa, lateral view. (26245421558).jpg 1,351 × 989; 89 KB
1955. Halisidota argentata. Silver-spotted tiger moth. Pupa, ventral view. (26245425918).jpg 1,353 × 991; 106 KB
1955. Halisidota argentata. Silver-spotted tiger moth. Pupa. (26245432558).jpg 1,369 × 1,031; 96 KB
1955. John Wear demonstrates use of portable split light table in the field. (33423140326).jpg 1,319 × 1,023; 307 KB
1955. John Wear interpreting aerial color transparencies on a portable divided light table. (33463687845).jpg 1,201 × 891; 108 KB
1955. Larva of dipterous predator (Medetera polita) thought to be predacious on immature forms of the Sitka spruce weevil. Seaside, Oregon. (40086966062).jpg 1,333 × 1,058; 92 KB
1955. Larva of predacious insect (probably family Cucujidae) found under bark of weeviled Sitka spruce leader; believed to ba a predator of the Sitka spruce weevil. Specimen collected in Clatsop County, Oregon. (40086971062).jpg 1,333 × 1,054; 152 KB
1955. Longhorned beetle (Arhopalus productus) larva, dorsal view. (25247298247).jpg 1,052 × 1,349; 73 KB
1955. Longhorned beetle (Arhopalus productus) larva, dorsal view. (26245480118).jpg 1,048 × 1,349; 79 KB
1955. Longhorned beetle (Arhopalus productus) larva, dorsal view. (40086905912).jpg 1,073 × 1,361; 73 KB
1955. Longhorned beetle (Arhopalus productus) larva, dorsal view. (40086911592).jpg 1,047 × 1,340; 161 KB
1955. Outdoor field insectary for biological studies of Pseudohylesinus. G.M. Thomas in picture. Koma Kulshan Guard Station, Mt. Baker National Forest, Washington. (33080370500).jpg 1,355 × 1,049; 357 KB
1955. Phytodietus fumiferanae. Larva of this external parasite shown in typical feeding position on the thorax of a 6th instar spruce budworm larva. Baker, Oregon. (34009647574).jpg 1,040 × 1,346; 136 KB
1955. Puparia of dipterous predator (Medetera polita) thought to be predacious on immature forms of the Sitka spruce weevil. Seaside, Oregon. (40086962432).jpg 1,341 × 1,079; 67 KB
1955. Sitka spruce weevil (Pissodes sitchensis) adult. Specimen from Clatsop County, Oregon. (39407782264).jpg 776 × 1,143; 77 KB
1955. Sitka spruce weevil (Pissodes sitchensis) Larva specimen from near Seaside, Oregon. (39407771554).jpg 1,058 × 1,334; 116 KB
1955. Sitka spruce weevil (Pissodes sitchensis). Larva specimen from Clatsop County, Oregon. (39220460285).jpg 1,061 × 1,364; 103 KB
1955. Sitka spruce weevil (Pissodes sitchensis). Pupa specimen from near Astoria, Oregon. (25247361367).jpg 1,331 × 1,045; 83 KB
1955. Sitka spruce weevil (Pissodes sitchensis). Pupa specimen from near Seaside, Oregon. (25247364267).jpg 1,337 × 1,064; 98 KB
1955. Sitka spruce weevil study plot in 26 y.o. plantation. Crown Zellerbach forester Slim Schraeger. Clatsop Tree Farm, Clatsop County, Oregon. (32683664443).jpg 1,345 × 1,053; 400 KB
1955. Spruce budworm (Choristoneura) full-grown larva. Photo taken on white background to show light color of head and thoracic shield and ivory colored setal areas. Sellwood Lab. Portland, Oregon. (39407825834).jpg 1,441 × 1,145; 74 KB
1955. Spruce budworm (Choristoneura) pre-pupa, showing shortening and thickening of body, prior to pupation. Sellwood Lab. Portland, Oregon. (39407834854).jpg 1,345 × 1,049; 108 KB
1955. Spruce budworm (Choristoneura). Male pupa (left) and female pupa (right. To show difference in the number of flexible abdominal segments and general difference in size. Union, Oregon. (39220530195).jpg 1,163 × 801; 53 KB
1955. Spruce budworm (Choristoneura). Pupa in web on tip of twig from a west-side Douglas-fir. Current growth has been destroyed. (It is questionable whether bud sheaths would still be hanging on under normal conditions.) (26245579168).jpg 1,055 × 1,346; 222 KB
1955. Young larvae of balsam woolly adelgid (Chermes sp.) from Pacific silver fir. Note stylets used by insect to feed from cambium. Toutle River, Washington. (40087006962).jpg 785 × 767; 48 KB
1956. "Old" and new stand of Sitka spruce. New stand (natural) is about 12 years old and is being studied to determine incidence of damage by Sitka spruce weevil. G.M. Thomas on stump. Tillamook Head, Oregon. (40086935392).jpg 1,347 × 1,034; 258 KB

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