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,...
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,...
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,...
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,...
Aerial Detection of Balsam Woolly Adelgid infestations on Subalpine Fir Using Lichen Cover Authors: David Overhulser, Linda Geiser, Alan Kanaskie, Iral Ragenovich, and Michael McWilliams Date: c.2005 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: Aerial Survey program digital file 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, balsamwoollyadelgid, davidoverhulser, region6,...
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,...
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,...
Subalpine fir with balsam woolly adelgid damage. Hurricane Ridge, Olympic National Park, Washington. Photo taken while ground-checking aerial detection survey data. Photo by: Justin Hof Date: July 20, 2017 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: Aerial Survey Program collection. For a related story with this photo see the 2017 Washington Aerial Survey Storymap here: usfs.maps.arcgis.com/apps/MapJournal/index.html?appid=aa8... For...
Topics: usda, stateandprivateforestry, justinhof, balsamwoollyadelgid, hurricanridge, foresthealth,...
Subalpine fir with balsam woolly adelgid damage. Hurricane Ridge, Olympic National Park, Washington. Photo by: Justin Hof Date: July 20, 2017 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: www.fs.usda.gov/Internet/FSE_DOCUMENTS/fsbdev2_043667.pdf Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection:...
Topics: usda, stateandprivateforestry, justinhof, balsamwoollyadelgid, foresthealth, aerialdetectionsurvey,...
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 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,...
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,...
Colonizing Laricobius erichsonii predators on balsam woolly adelgid infested subalpine fir. Willamette Pass, Oregon. Photo by: Ken H. Wright 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-2017 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...
Topics: chermespiceae, r6, usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, usfs,...
Central Oregon Service Center entomologists Rob Flowers (left) and Andy Eglitis during field work assessing long-term monitoring plots in subalpine fir stands affected by balsam woolly adelgid. Crater Lake National Park, Oregon. Photo by: Rob Flowers Date: October 2, 2015 Photo credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Central Oregon Insect and Disease Service Center. Source: Rob Flowers collection. Bend, Oregon. Image provided by USDA Forest...
Topics: r6, usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, longterm,...
Western balsam bark beetle (Dryocoetes confusus) egg galleries and larval mines on the surface of Abies lasiocarpa. Photo by: R.B. Pope Date: 1956 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Source: Portland Station Collection; La Grande, Oregon. Image: PS-1455 To learn more about this photo collection see: Wickman, B.E., Torgersen, T.R. and Furniss, M.M. 2002. Photographic images and history of forest insect investigations on the...
Topics: dryocoetesconfusus, r6, usda, stateandprivateforestry, larvalmine, region6, pnfres, barkbeetle,...
Egg of Syrphus opinator a native predator of balsam woolly adelgid. On subalpine fir at Willamette Pass, Oregon. Neg. Mag. X15. 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-2066 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,...
Balsam woolly adelgid (Chermes) killed subalpine fir. 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-3090 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, deadtrees,...
Releasing Laricobius erichsonii (biological control; natural predator) on Chermes-infested subalpine fir. Willamette Pass, Oregon. Photo by: Ken H. Wright 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-2016 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...
Topics: chermespiceae, r6, usda, stateandprivateforestry, treedamage, Balsam Woolly Adelgid,...
Colonizing Laricobius erichsonii predators on balsam woolly adelgid infested subalpine fir. Biological control. Willamette Pass, Oregon. Photo by: Ken H. Wright 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-2015 To learn more about this photo collection see: Wickman, B.E., Torgersen, T.R. and Furniss, M.M. 2002. Photographic images and history of...
Topics: chermespiceae, r6, usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, usfs,...
Andy Eglitis measuring a tree during field work assessing long-term monitoring plots in subalpine fir stands affected by balsam woolly adelgid. Crater Lake National Park, Oregon. Photo by: Rob Flowers Date: October 1, 2015 Photo credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Central Oregon Insect and Disease Service Center. Source: Rob Flowers collection. Bend, Oregon. Image provided by USDA Forest Service, Region 6, State and Private Forestry,...
Topics: r6, usda, stateandprivateforestry, Balsam Woolly Adelgid, balsamwoollyadelgid, tree, foresthealth,...
Balsam woolly adelgid-damaged Pacific silver fir. Shows ball-shaped crowns containing most of current year's growth. Spire like trees in background are balsam woolly adelgid-killed subalpine fir. Blair Meadows. Willamette National Forest, Oregon. Photo by: Russ G. Mitchell Date: August 1958 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2171 To learn more about...
Topics: chermespiceae, r6, usda, stateandprivateforestry, treedamage, Balsam Woolly Adelgid,...
Balsam woolly adelgid-damaged Pacific silver fir. Shows ball-shaped crowns containing most of current year's growth. Spire like trees in background are balsam woolly adelgid-killed subalpine fir. Blair Meadows. Willamette National Forest, Oregon. Photo by: Russ G. Mitchell Date: August 1958 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2169 To learn more about...
Topics: chermespiceae, r6, usda, stateandprivateforestry, treedamage, Balsam Woolly Adelgid,...
Mixed stand of subalpine and Pacific silver fir heavily damaged by balsam woolly adelgid. Most of the sub-alpine fir is dead. Ball-shaped crowns on silver fir are typical of damage to this species. Near Blair Meadows. Willamette National Forest, Oregon. Photo by: Russ G. Mitchell Date: August 1958 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Portland Station Collection; La Grande, Oregon. Image: PS-2170 To learn more...
Topics: chermespiceae, r6, usda, stateandprivateforestry, treedamage, Balsam Woolly Adelgid,...
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, dorenageneticresourcecenter,...
