10 p. : 24 cm
Topics: Balsam woolly adelgid, Fir Diseases and pests
1 folded sheet (6 p.) : 23 x 10 cm
Topics: Balsam woolly adelgid Washington (State), Balsam woolly adelgid Oregon, Aerial surveys in forestry...
Balsam woolly adelgid damage in subalpine fir. Photo by: Richard Sniezko Date: May 12, 2004 Credit: USDA Forest Service, Region 6, Umpqua National Forest, Dorena Genetic Resource Center. Source: DRGC digital photo collection; courtesy Richard Sniezko, Cottage Grove, Oregon. Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
Topics: Balsam Woolly Adelgid, dorena, insectdamage, foresthealthprotection, usda, stateandprivateforestry,...
Subalpine fir with balsam woolly adelgid damage. High elevation five-needle pines (High Five) symposium field trip. Montana Snowbowl ski area, Missoula, Montana. Photo by: Kristen Chadwick Date: June 30, 2010 Photo credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Westside Forest Insect and Disease Service Center. Source: Kristen Chadwick collection; Sandy, Oregon. "High elevation five-needle pines are rapidly declining throughout North America....
Topics: westsideservicecenter, westsideforestinsectanddiseaseservicecenter, foresthealthprotection,...
Balsam woolly adelgid damage. High elevation five-needle pines (High Five) symposium field trip. Montana Snowbowl ski area, Missoula, Montana. Photo by: Kristen Chadwick Date: June 30, 2010 Photo credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Westside Forest Insect and Disease Service Center. Source: Kristen Chadwick collection; Sandy, Oregon. "High elevation five-needle pines are rapidly declining throughout North America. The six species,...
Topics: westsideservicecenter, westsideforestinsectanddiseaseservicecenter, foresthealthprotection,...
Balsam woolly adelgid damage. High elevation five-needle pines (High Five) symposium field trip. Montana Snowbowl ski area, Missoula, Montana. Photo by: Kristen Chadwick Date: June 30, 2010 Photo credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Westside Forest Insect and Disease Service Center. Source: Kristen Chadwick collection; Sandy, Oregon. "High elevation five-needle pines are rapidly declining throughout North America. The six species,...
Topics: westsideservicecenter, westsideforestinsectanddiseaseservicecenter, foresthealthprotection,...
Forest entomologist Dave Bridgwater with balsam woolly adlegid damage in subalpine fir. Photo by: Richard Sniezko Date: May 12, 2004 Credit: USDA Forest Service, Region 6, Umpqua National Forest, Dorena Genetic Resource Center. Source: DRGC digital photo collection; courtesy Richard Sniezko, Cottage Grove, Oregon. Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
Topics: Balsam Woolly Adelgid, dorena, foresthealthprotection, usda, stateandprivateforestry,...
Balsam woolly adelgid caused branch flagging in subalpine fir. Photo by: Richard Sniezko Date: May 12, 2004 Credit: USDA Forest Service, Region 6, Umpqua National Forest, Dorena Genetic Resource Center. Source: DRGC digital photo collection; courtesy Richard Sniezko, Cottage Grove, Oregon. Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
Topics: Balsam Woolly Adelgid, dorena, foresthealthprotection, damage, usda, stateandprivateforestry,...
Balsam woolly adelgid damage in subalpine fir. Photo by: Richard Sniezko Date: May 12, 2004 Credit: USDA Forest Service, Region 6, Umpqua National Forest, Dorena Genetic Resource Center. Source: DRGC digital photo collection; courtesy Richard Sniezko, Cottage Grove, Oregon. Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
Topics: Balsam Woolly Adelgid, dorena, insectdamage, foresthealthprotection, usda, stateandprivateforestry,...
Drawing shows life stages and feeding methods of the balsam woolly adelgid, Chermes piceae (Ratz.). Artist: Norman E. Johnson Photo by: Wally C. Guy Date: April 1957 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-1673 For more about the balsam woolly adelgid see: Ragenovich, I.R. and R.G. Mitchell. 2006. Balsam Woolly Adelgid. Forest Insect and Disease Leaflet 118....
Topics: chermespiceae, april1957, foresthealthprotection, usda, stateandprivateforestry, pnw, nejohnson,...
Balsam woolly adelgid in subalpine fir. High elevation five-needle pines (High Five) symposium field trip. Montana Snowbowl ski area, Missoula, Montana. Photo by: Kristen Chadwick Date: June 30, 2010 Photo credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Westside Forest Insect and Disease Service Center. Source: Kristen Chadwick collection; Sandy, Oregon. "High elevation five-needle pines are rapidly declining throughout North America. The six...
Topics: westsideservicecenter, westsideforestinsectanddiseaseservicecenter, foresthealthprotection,...
Field meeting with Forest Service and Oregon Department of Forestry entomologists and pathologists looking at balsam woolly adelgid damage in subalpine fir. Photo by: Richard Sniezko Date: May 12, 2004 Credit: USDA Forest Service, Region 6, Umpqua National Forest, Dorena Genetic Resource Center. Source: DRGC digital photo collection; courtesy Richard Sniezko, Cottage Grove, Oregon. Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection:...
Topics: Balsam Woolly Adelgid, dorena, foresthealthprotection, usda, stateandprivateforestry,...
Balsam woolly adelgid damage in subalpine fir. High elevation five-needle pines (High Five) symposium field trip. Montana Snowbowl ski area, Missoula, Montana. Photo by: Kristen Chadwick Date: June 30, 2010 Photo credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Westside Forest Insect and Disease Service Center. Source: Kristen Chadwick collection; Sandy, Oregon. "High elevation five-needle pines are rapidly declining throughout North America. The...
Topics: westsideservicecenter, westsideforestinsectanddiseaseservicecenter, foresthealthprotection,...
Balsam woolly adelgid (Chermes piceae Ratz.). Adult, ventral view. Neg. X100. Photo by: R.G. Mitchell Date: May 1958 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2095 For more about the balsam woolly adelgid see: Ragenovich, I.R. and R.G. Mitchell. 2006. Balsam Woolly Adelgid. Forest Insect and Disease Leaflet 118. USDA Forest Service, available here:...
Topics: adult, forest service, rgmitchell, foresthealthprotection, pacificnorthwestregion, usda,...
Diptera Itonididae Aphidoletes thompsoni Mohn. Male adult of balsam woolly adelgid (Chermes) predator, introduced from Slovakia. Sellwood Lab. Portland, Oregon. Note: Taxonomy is from 1957 documentation. Photo by: Peter W. Orr Date: 1957 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-1622 To learn more about this photo collection see: Wickman, B.E., Torgersen, T.R....
Topics: predator, foresthealthprotection, usda, peterworr, stateandprivateforestry, balsamwoollyadelgid,...
Set-up for rearing Aphidoletes thompsoni, a predator of balsam woolly adelgid (Chermes piceae) were received from Slovakia, Europe, at the Sellwood Lab. Portland, Oregon. Photo by: Ken H. Wright and D.K. Costello 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-1612 To learn more about this photo collection see: Wickman, B.E., Torgersen, T.R. and...
Topics: chermespiceae, usda, stateandprivateforestry, july1957, balsamwoollyadelgid, chermespiceaeratz,...
Larval drawing of H. neadelphus: A) Head region of third instar larva (x59); B) Third instar larva (x17); C) dorsal view of third instar right mandible (x84); D) Ventral view of third instar right maxilla (x86); E) Tarsus of third instar (x129); F) tarsus of first instar (x190); G) Dorsal view of last two abdominal segments (x72). Artist: Russ G. Mitchell Photo by: Wally C. Guy Date: 1959 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health...
Topics: usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, drawing,...
Balsam woolly adelgid (Chermes piceae). Lower surface of limb showing characteristics of heavy attack on Abies grandis. Sample from Wilsonville, Oregon. Photo by: Robert L. Furniss Date: April 10, 1942 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-574B For more about the balsam woolly adelgid see: Ragenovich, I.R. and R.G. Mitchell. 2006....
Topics: chermespiceae, divisionofforestinsectinvestigations, usda, bureauofentomologyandplantquarantine,...
Cage used for isolating and rearing Chermes predators on Abies lasiocarpa. Willamette Pass, Oregon. Photo by: Russ G. Mitchell Date: September 1957 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-1698 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...
Topics: r6, usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, region6,...
Balsam woolly adelgid (Chermes) committee of the Northwest Forest Pest Action Council at a field meeting. Bill Hagenstein is 2nd from the right. Blair Meadows, Willamette National Forest, Oregon. Photo by: Ken H. Wright Date: October 17, 1959 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-3085 For more about the balsam woolly adelgid see: Ragenovich, I.R. and R.G....
Topics: usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, ps3085, october171959,...
Balsam woolly adelgid on Pacific silver fir. Note wool secreting from dorsal side of adult. Mt. St. Helens, Washington. Photo by: R.B. Pope Date: August 1, 1955 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-1022 For more about the balsam woolly adelgid see: Ragenovich, I.R. and R.G. Mitchell. 2006. Balsam Woolly Adelgid. Forest Insect and Disease Leaflet 118. USDA...
Topics: r6, usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, mtsthelens, region6,...
Syrphus vitripennis adult - a common native predator of the balsam woolly adelgid. Photo by: Russ G. Mitchell Date: September 1958 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2062 For additional historic forest entomology photos, stories, and resources see the Western Forest Insect Work Conference site: wfiwc.org/content/history-and-resources Image provided by...
Topics: chermespiceae, r6, usda, syrphusvitripennis, stateandprivateforestry, Balsam Woolly Adelgid,...
Group inspecting Chermes damage. L-R: Don Hopkins, Robert L. Furniss, Connie Wessala, Ben Howard. St. Helen's Tree Farm, Washington. Photo by: Ken H. Wright Date: 1960 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-3095 For more about the balsam woolly adelgid see: Ragenovich, I.R. and R.G. Mitchell. 2006. Balsam Woolly Adelgid. Forest Insect and Disease Leaflet...
Topics: usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, donhopkins,...
Ken H. Wright examining screen cage used for the release of European predator Aphidoletes thomsoni (imported from Czechoslovakia to attack woolly aphids that infest silver fir trees in Oregon and Washington). Black Rock, Oregon. Photo by: Benton Howard 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-1686 To learn more about this photo collection see:...
Topics: usda, stateandprivateforestry, july1957, ps1686, forest service, adelgespiceae,...
Solitary parasite from puparium of Syrphus opinator, a predator of the balsam woolly adelgid. Ventral view. Neg. Mag. X3.5. Photo by: Russ G. Mitchell Date: September 1958 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2075 For additional historic forest entomology photos, stories, and resources see the Western Forest Insect Work Conference site:...
Topics: chermespiceae, r6, usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid,...
Field meeting with Forest Service and Oregon Department of Forestry entomologists and pathologists looking at balsam woolly adelgid damage in subalpine fir. Photo by: Richard Sniezko Date: May 12, 2004 Credit: USDA Forest Service, Region 6, Umpqua National Forest, Dorena Genetic Resource Center. Source: DRGC digital photo collection; courtesy Richard Sniezko, Cottage Grove, Oregon. Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection:...
Topics: r6, usda, stateandprivateforestry, Balsam Woolly Adelgid, dorenageneticresourcecenter,...
Ken H. Wright examining screen cage used for the release of European predator Aphidoletes thomsoni (imported from Czechoslovakia to attack woolly aphids that infest silver fir trees in Oregon and Washington). Black Rock, Oregon. Photo by: Benton Howard 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-1687 To learn more about this photo collection see:...
Topics: usda, stateandprivateforestry, july1957, ps1687, forest service, adelgespiceae,...
Russ Mitchell, Robert Furniss, and T. Silver. Chermes (balsam woolly adelgid) conference and field trip. Mount St. Helens, Washington. Photo by: Ken H. Wright Date: July 1958 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2101 For more, see The Balsam Woolly Aphid Problem in Oregon and Washington, Research Paper Number 18. 1957. Pacific Northwest Forest and Range...
Topics: chermespiceae, r6, usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, usfs,...
Interior of shipping box containing 10,000 Aphidoletes thompsoni, a predator of balsam woolly adelgid (Chermes piceae) received from Slovakia, Europe. Sellwood Lab. Portland, Oregon. Photo by: Ken H. Wright and D.K. Costello 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-1611 To learn more about this photo collection see: Wickman, B.E., Torgersen,...
Topics: chermespiceae, usda, stateandprivateforestry, july1957, sellwoodlab, aphidoletesthompsoni, usfs,...
Balsam woolly adelgid (Chermes piceae). Upper surface of limb showing characteristics of heavy attack on Abies grandis. Sample from Wilsonville, Oregon. Photo by: Robert L. Furniss Date: April 10, 1942 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-574A For more about the balsam woolly adelgid see: Ragenovich, I.R. and R.G. Mitchell. 2006....
Topics: chermespiceae, divisionofforestinsectinvestigations, usda, bureauofentomologyandplantquarantine,...
Balsam woolly adelgid (Chermes sp.) woolly exudation on subalpine fir (Abies lasiocarpa). Government Camp, Oregon. Photo by: R.B. Pope Date: 1955 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-1012 For more about the balsam woolly adelgid see: Ragenovich, I.R. and R.G. Mitchell. 2006. Balsam Woolly Adelgid. Forest Insect and Disease Leaflet 118. USDA Forest...
Topics: r6, usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, region6, ps1012,...
Chermes piceae (balsam woolly adelgid). First instar larva (neosisten) with extended stylets. Collected March 1958 from grand fir near Corvallis. Photo by: R.G. Mitchell Date: 1958 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2167 For more about the balsam woolly adelgid see: Ragenovich, I.R. and R.G. Mitchell. 2006. Balsam Woolly Adelgid. Forest Insect and...
Topics: chermespiceae, usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid,...
Field meeting with Forest Service and Oregon Department of Forestry entomologists and pathologists looking at balsam woolly adelgid damage in subalpine fir. Photo by: Richard Sniezko Date: May 12, 2004 Credit: USDA Forest Service, Region 6, Umpqua National Forest, Dorena Genetic Resource Center. Source: DRGC digital photo collection; courtesy Richard Sniezko, Cottage Grove, Oregon. Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection:...
Topics: r6, usda, stateandprivateforestry, Balsam Woolly Adelgid, 2004, balsamwoollyadelgid,...
Caged lower bole of balsam woolly adelgid-infested Abies lasiocarpa. Willamette Pass, Oregon. Photo by: Ken H. Wright Date: October 8, 1959 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2457 For more about the balsam woolly adelgid see: Ragenovich, I.R. and R.G. Mitchell. 2006. Balsam Woolly Adelgid. Forest Insect and Disease Leaflet 118. USDA Forest Service,...
Topics: usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, willamettepass,...
Cage used in an attempt to recover overwintering Laricobius erichsonii from the duff. Willamette Pass, Oregon. Photo by: Ken H. Wright Date: October 8, 1959 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2459 For more about the balsam woolly adelgid see: Ragenovich, I.R. and R.G. Mitchell. 2006. Balsam Woolly Adelgid. Forest Insect and Disease Leaflet 118. USDA...
Topics: usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, ps2459, willamettepass,...
Group inspecting balsam woolly adelgid (Chermes) damage: L-R: Nels Jeffers, Jack Bongberg, Ray Lejeune, Hec Richmond, Tom Silver, Norm Johnson, Ken Wright, Note size of Douglas-fir stump. Near Mt. St. Helens, Washington. Photo by: R.E. Balch Date: July 1958 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2998 For more, see The Balsam Woolly Aphid Problem in Oregon...
Topics: jackbongberg, usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, tomsilver,...
Chermes biological control predator Aphidoletes thompsoni Mohn. Adult male Neg. Mag. X14. Photo by: Russ G. Mitchell Date: July 1958 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2030 For additional historic forest entomology photos, stories, and resources see the Western Forest Insect Work Conference site: wfiwc.org/content/history-and-resources Image provided by...
Topics: usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, biologicalcontrol, male,...
Balsam woolly adelgid (Chermes) committee of the Northwest Forest Pest Action Council at a field meeting. Blair Meadows, Willamette National Forest, Oregon. Photo by: Ken H. Wright Date: October 17, 1959 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-3086 For more about the balsam woolly adelgid see: Ragenovich, I.R. and R.G. Mitchell. 2006. Balsam Woolly Adelgid....
Topics: usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwollyadelgid, october171959, ps3086,...
Diptera Syrphidae Metasyrphus lapponicus Zett. Adult male - lateral view. Negative magnified x8.8 A native predator of the balsam woolly adelgid. Collected at Willamette Pass, Oregon. Note: Taxonomy is from 1959 documentation. Photo by: R.G. Mitchell Date: 1959 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2492 To learn more about this photo collection see:...
Topics: usda, stateandprivateforestry, metasyrphuslapponicuszett, 1959, balsamwoollyadelgid, diptera,...
Larval drawings of the native balsam woolly adelgid (Chermes) predator Syrphus opinator O.S.: A, dorsal view of third instar larva (13x); B, lateral view of third instar larva (13x); C, third instar mouth-hooks (54x); D, segmental spine of third instar larva (145x); E, third instar spiracular plate (120x). Artist: Russ G. Mitchell Photo by: Wally C. Guy Date: 1959 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland...
Topics: usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, drawing, forest service,...
Balsam woolly adelgid (Chermes piceae) infestation reaching to ground line on large Abies lasiocarpa. Willamette Pass, Oregon. Photo by: Ken H. Wright Date: October 8, 1959 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2458 For more about the balsam woolly adelgid see: Ragenovich, I.R. and R.G. Mitchell. 2006. Balsam Woolly Adelgid. Forest Insect and Disease...
Topics: chermespiceae, r6, usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid,...
Ice boxes used to transport Aphidoletes thompsoni, a predator of balsam woolly adelgid (Chermes piceae) from Slovakia, Europe, to release points in the field. Sellwood Lab. Portland, Oregon. Photo by: Ken H. Wright and D.K. Costello 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-1620 To learn more about this photo collection see: Wickman, B.E.,...
Topics: chermespiceae, usda, stateandprivateforestry, july1957, sellwoodlab, ps1620,...
Larval drawings of the native balsam woolly adelgid (Chermes) predator Cnemodon rita Curran: A, first instar larva (20x); B, second instar larva (20x); C, third instar larva (20x); D, first instar respiratory process (86x); E, second instar respiratory process (46x); F, third instar mouth-hook (71x); G, third instar mouth hook (71x); H, third instar spiracular plate (160x). Artist: Russ G. Mitchell Photo by: Wally C. Guy Date: 1959 Credit: USDA Forest Service, Pacific Northwest Region, State...
Topics: usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, drawing, forest service,...
Stem gout caused by balsam woolly adelgid. Photo by: Unknown Date: c.2008 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, Balsam Woolly Adelgid, tree, foresthealth, region6, stemgout,...
Melrose box used for rearing Aphidoletes thompsoni, a predator of balsam woolly adelgid (Chermes piceae) that were received from Slovakia, Europe. Sellwood Lab. Portland, Oregon. Photo by: Ken H. Wright and D.K. Costello 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-1613 To learn more about this photo collection see: Wickman, B.E., Torgersen, T.R....
Topics: chermespiceae, usda, stateandprivateforestry, july1957, sellwoodlab, aphidoletesthompsonimohn,...
Larval drawings of three mature itonidids which are predators on balsam woolly adelgid (Chermes): A. Lestodiplosis sp. (47x); B. Unknown species (37x); C. Aphidoletes thompsoni (50x). Artist: Russ G. Mitchell Photo by: Wally C. Guy Date: 1959 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2361 For additional historic forest entomology photos, stories, and resources...
Topics: usda, stateandprivateforestry, itonidid, balsamwoollyadelgid, drawing, forest service, rgmitchell,...
Number 2 of a 3 photo sequence of tree killed by balsam woolly aphid. (G) filter. Pine Creek. Gifford Pinchot National Forest, Washington. Photo by: Ken H. Wright Date: June 26, 1956 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-3098 For more, see The Balsam Woolly Aphid Problem in Oregon and Washington, Research Paper Number 18. 1957. Pacific Northwest Forest and...
Topics: r6, usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, region6,...
Field meeting with Forest Service and Oregon Department of Forestry entomologists and pathologists looking at balsam woolly adelgid damage in subalpine fir. Photo by: Richard Sniezko Date: May 12, 2004 Credit: USDA Forest Service, Region 6, Umpqua National Forest, Dorena Genetic Resource Center. Source: DRGC digital photo collection; courtesy Richard Sniezko, Cottage Grove, Oregon. Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection:...
Topics: r6, usda, stateandprivateforestry, treedamage, Balsam Woolly Adelgid, 2004, balsamwoollyadelgid,...
Balsam woolly adelgid (Chermes piceae). Lower surface of limb showing characteristics of heavy attack on Abies grandis. Sample from Wilsonville, Oregon. Photo by: Robert L. Furniss Date: April 10, 1942 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-573B For more about the balsam woolly adelgid see: Ragenovich, I.R. and R.G. Mitchell. 2006....
Topics: chermespiceae, divisionofforestinsectinvestigations, usda, bureauofentomologyandplantquarantine,...
Reared specimen of Metasyrphus amalopsis found associated with balsam woolly adelgid near Corvallis, Oregon. Neg. Mag. X7.5. Photo by: Russ G. Mitchell Date: May 1958 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2072 For additional historic forest entomology photos, stories, and resources see the Western Forest Insect Work Conference site:...
Topics: chermespiceae, r6, usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, usfs,...
