Category:Forest pathology

**forest pathology**
	subfield of forestry and plant pathology
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Instance of	branch of botany;
Subclass of	plant pathology; forestry science;
Authority file
	Q5469188; GND ID: 4188995-2; NL CR AUT ID: ph348289
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Subcategories

This category has the following 3 subcategories, out of 3 total.

B

Books about forest pathology‎ (3 C, 5 F)

D

Diseases and disorders of trees‎ (19 C, 64 F)

F

Forest dieback‎ (3 C, 77 F)

Media in category "Forest pathology"

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

1913. Example of tree surgery on valuable cultivated chestnut trees affected by the Chestnut Bark Disease. Westchester, Pennsylvania. (41564595641).jpg 2,958 × 3,772; 1.29 MB
1932. Blue stain in ponderosa pine which was not associated with insects. Sisters, Oregon. (36085943434).jpg 914 × 1,304; 158 KB
1932. Blue stain in ponderosa pine which was not associated with insects. Sisters, Oregon. (36112219893).jpg 913 × 1,317; 305 KB
1934. Break in fire-killed Douglas-fir showing mycelium of Fomes laricis. Yacolt, Washington. (34735500442).jpg 897 × 1,319; 178 KB
1934. Portion of timber burned in the August 1933 fire and scene of the tree medication studies. Jewell, Oregon. (38165990426).jpg 914 × 1,269; 277 KB
1934. Result of the August 1933 fire and scene of the tree medication studies. Jewell, Oregon. (26445147889).jpg 920 × 1,346; 274 KB
1934. Spore of Fomes laricis on Douglas-fir killed in the 1902 Yacolt Burn. Yacolt, Washington. (34928012831).jpg 1,329 × 920; 208 KB
1934. Tin collar used in medicating fire-killed Douglas-fir. Tree medication studies. Jewell, Oregon. (26445146779).jpg 866 × 1,305; 140 KB
1934. Tin collar used on medicated fire-killed Douglas-fir. Tree medication studies. (26445146169).jpg 948 × 1,306; 232 KB
1934. Tin collar used on medicated fire-killed Douglas-fir. Tree medication studies. Jewell, Oregon. (26174515688).jpg 928 × 1,305; 256 KB
1935. Fomes pinicola sporophore, end view. (34626539500).jpg 1,366 × 1,921; 275 KB
1935. Fomes pinicola sporophore, profile view. (34881781501).jpg 708 × 750; 59 KB
1935. Fomes pinicola sporophore, top view. (34088093033).jpg 966 × 848; 94 KB
1935. Fomes pinicola sporophores under surface. (36012494255).jpg 926 × 684; 83 KB
1935. George Englerth, forest pathologist, beside an insect cage on a fire-killed Douglas-fir near Gales Creek, Oregon. (34728758262).jpg 1,484 × 2,111; 642 KB
1935. Lenzites sepiaria sporophores on fire-killed Douglas-fir limb. (34170415104).jpg 1,388 × 1,928; 294 KB
1935. Lenzites sepiaria sporophores on fire-killed Douglas-fir limb. (34671978660).jpg 1,195 × 1,947; 285 KB
1935. Polyporus abietinus sporophores. (34928009931).jpg 1,328 × 1,744; 532 KB
1936. Enormous sporophore on 24" sugar maple. Top of tree has broken out within the last two or three years. 2 sec. F-15 LV=6. Lake States Forest Experiment Station, Minnesota. (40672036555).jpg 2,748 × 4,323; 1.41 MB
1937. Fir false mistletoe, Razoumofskya occidentalis abietina. Notice twig swelling and scanty foliage. On lowland white fir at Sen. McNary's farm. Salem, Oregon. (36012497455).jpg 1,358 × 1,499; 158 KB
1937. Witches' broom caused by fir false mistletoe, Razoumofskya occidentalis abietina on lowland white fir at Sen. McNary's farm. Salem, Oregon. (35971114996).jpg 1,303 × 1,915; 223 KB
1939. Myrtle burls. Chetco River Road. Siskiyou National Forest, Oregon. (41564600811).jpg 4,797 × 3,900; 3 MB
1944. Sporophore of Fomes laricis on windthrown Douglas-fir, down many years. Stimson Logging Company operation. Tillamook Burn, Oregon. (35015233925).jpg 1,401 × 1,089; 230 KB
1946. Fading foliage on ponderosa pine infected by Elytroderma deformans needle fungus. Johnson Creek. Ochoco National Forest, Oregon. (25154672177).jpg 1,989 × 1,439; 435 KB
1946. Fading foliage on ponderosa pine infected by Elytroderma deformans needle fungus. Johnson Creek. Ochoco National Forest, Oregon. (39993815382).jpg 1,998 × 1,430; 453 KB
1946. Group of ponderosa pine affected by Elytroderma deformans needle fungus. Johnson Creek. Ochoco National Forest, Oregon. (39993811262).jpg 1,861 × 1,315; 501 KB
1946. Mature ponderosa pine dying from effects of Elytroderma deformans needle fungus. Johnson Creek. Ochoco National Forest, Oregon. (26152452288).jpg 2,030 × 1,367; 430 KB
1953. Deterioration of beetle-killed Douglas-fir. Progress of decay after two years. 180 year old tree. Millicoma Forest. Coos County, Oregon. (34885469961).jpg 1,417 × 1,109; 303 KB
1953. Deterioration of beetle-killed Douglas-fir. Progress of decay in tree after one year. Blue stain is the only damage. 110 years old. Carson, Washington. (34977699796).jpg 1,121 × 1,451; 283 KB
1953. Deterioration of beetle-killed Douglas-fir. Progress of decay in tree after six years. 180 year old tree. Millicoma Forest. Coos County, Oregon. (34173899814).jpg 1,167 × 876; 204 KB
1953. Deterioration of beetle-killed Douglas-fir. Progress of decay in tree after six years. 180 year old tree. Millicoma Forest. Coos County, Oregon. (34206910573).jpg 1,331 × 1,031; 294 KB
1953. Deterioration of beetle-killed Douglas-fir. Progress of decay in tree after six years. 180 year old tree. Millicoma Forest. Coos County, Oregon. (34853973012).jpg 951 × 1,327; 235 KB
1953. Deterioration of beetle-killed Douglas-fir. Progress of decay in tree after six years. 180 year old tree. Millicoma Forest. Coos County, Oregon. (35017596595).jpg 1,419 × 1,105; 396 KB
1953. Deterioration of beetle-killed Douglas-fir. Progress of decay in tree after two years. 110 year old tree. Gifford Pinchot National Forest. Carson, Washington. (35017658535).jpg 1,018 × 1,336; 269 KB
1953. Deterioration of beetle-killed Douglas-fir. Progress of decay in tree after two years. 180 year old tree. Millicoma Forest. Coos County, Oregon. (34854053982).jpg 1,347 × 1,053; 279 KB
1953. Deterioration of beetle-killed Douglas-fir. Progress of decay in tree dead for three years. 180 year old tree. Millicoma Forest. Coos County, Oregon. (34854044602).jpg 1,325 × 1,017; 233 KB
1953. Deterioration of beetle-killed Douglas-fir. Progress of decay in tree dead for two years. 180 year old tree. Millicoma Forest. Coos County, Oregon. (34977678466).jpg 1,331 × 1,027; 222 KB
1953. Polyporus volvatus conks on tree that's been dead for one year. Millicoma Forest, Coos County, OR. (35017579905).jpg 1,010 × 1,344; 276 KB
1953. Windthrow used for D. pseudotsugae population studies. Heavy Poria weirii infection in root over James Trappe's head. Packwood, Washington. (33456739326).jpg 1,337 × 1,027; 295 KB
1954. Port Orford cedar dying from Phytophthora root infection. Phloeosinus filling in. North Bend, Oregon. (33531066422).jpg 1,034 × 1,355; 270 KB
1954. Port Orford cedar dying from Phytophthora root infection. Phloeosinus filling in. North Bend, Oregon. (33558115251).jpg 1,329 × 1,025; 231 KB
1955. Forest pathologists Drs. T.W. Childs and J. Clark (PNFRES) examine section from butt of 180 y.o. Douglas-fir infested with Poria weirii. (33456743306).jpg 1,339 × 1,011; 223 KB
1956. Dr. E. Wright examines Douglas-fir laminated by Poria weirii. Weyerhaeuser Timber Company. (33513941556).jpg 1,259 × 1,013; 231 KB
1957. Polyporus hirsutus fruiting near the base of a Douglas-fir killed by beetle in 1956. (34314164823).jpg 1,337 × 1,075; 269 KB
1960. Progress of decay in 100-year-old beetle-killed Douglas-fir after 8 years. Cut at 18 feet. Panther Creek Experimental Forest. Carson, Washington. (Photo 2 of a 7-photo sequence). (39147747620).jpg 1,387 × 1,057; 224 KB
1960. Progress of decay in 100-year-old beetle-killed Douglas-fir after 8 years. Cut at 35 feet. Panther Creek Experimental Forest. Carson, Washington. (Photo 3 of a 7-photo sequence). (40957385961).jpg 1,383 × 1,062; 215 KB
1960. Progress of decay in 100-year-old beetle-killed Douglas-fir after 8 years. Cut at 51 feet. Panther Creek Experimental Forest. Carson, Washington. (Photo 4 of a 7-photo sequence). (40957382831).jpg 1,337 × 983; 189 KB
1960. Progress of decay in 100-year-old beetle-killed Douglas-fir after 8 years. Cut at 67 feet. Panther Creek Experimental Forest. Carson, Washington. (Photo 5 of a 7-photo sequence). (27086134698).jpg 838 × 796; 180 KB
1960. Progress of decay in 100-year-old beetle-killed Douglas-fir after 8 years. Cut at 84 feet. Panther Creek Experimental Forest. Carson, Washington. (Photo 6 of a 7-photo sequence). (27086130938).jpg 1,337 × 1,035; 152 KB
1960. Progress of decay in 100-year-old beetle-killed Douglas-fir after 8 years. Cut at stump height - 2 feet. Panther Creek Experimental Forest. Carson, Washington. (Photo 1 of a 7-photo sequence). (40915270002).jpg 1,051 × 1,347; 319 KB
1963. Fundamental research on pathogenic micro-organisms is aided by the use of the electron microscope. Corvallis, Oregon. (33934802863).jpg 1,817 × 1,403; 169 KB
1965. A group of ponderosa pine killed by dwarf mistletoe. South Rim of the Grand Canyon, Arizona. (25768173757).jpg 2,122 × 2,261; 2.15 MB
1965. Discolored inner bark caused by Port Orford cedar root disease. Near Bandon, Oregon. (35229069224).jpg 3,600 × 2,289; 4.51 MB
1965. Forest Disease Committee meeting. Yakima, Washington. (35899513232).jpg 3,600 × 2,403; 6.01 MB
1966. Helicopter hovers next to the top of a tall Douglas-fir tree while a branchlet is clipped with the newly developed tree pruner to sample foliage. (34481675923).jpg 2,705 × 2,150; 2.2 MB
1966. White pine killed by blister rust. (36028409806).jpg 2,366 × 3,600; 5.78 MB
1967. Ponderosa pines with crowns thinned by Elytroderma disease. Several other diseases cause thinning of crowns. Eastern Oregon, near John Day. (34244522132).jpg 3,813 × 4,776; 2.08 MB
1969. Insect and disease training. Armillaria root disease. Deschutes National Forest, Oregon. (36069307575).jpg 3,600 × 2,422; 5.32 MB
1969. Keith Shea with dwarf mistletoe in ponderosa pine. Green Mountain Plot. Tree 1180; 2.2 inch DBH. (36028406776).jpg 2,236 × 3,600; 5.4 MB
1971. Dave Johnson with a healthy Douglas-fir. Beaver Creek Seed Orchard. Philomath, Oregon. (35679391530).jpg 2,357 × 3,600; 5.19 MB
1972. Dave Johnson and Baker. Poria infected stand. Randle Ranger District, Gifford Pinchot National Forest, Washington. (35679347970).jpg 3,599 × 2,372; 1.7 MB
1973. Art Partridge (standing) and Ralph Williams. Root rot inspection tour. (35679334950).jpg 3,600 × 2,470; 1.11 MB
1975. Fomes annosus sampling. (35679239890).jpg 3,600 × 2,289; 3.81 MB
1977. Forest pathologist Craig L. Schmitt. Phellinus survey. Mapleton Ranger District, Siuslaw National Forest. Oregon. (35679195780).jpg 3,599 × 2,356; 2.03 MB
1977. Forest pathology group in the field. (35291740475).jpg 3,600 × 2,451; 5.13 MB
1977. Greg Filip photographing decay on disc. Hemlock Fomes annosus study. (35260554723).jpg 2,218 × 3,599; 1.16 MB
1977. MD 500C helicopter used for root disease aerial survey. Greg Filip (left). (36069186605).jpg 3,600 × 2,289; 4.15 MB
1978. Craig Schmitt measuring hemlock lengths for Fomes annosus study. (35260550533).jpg 2,441 × 3,600; 3.48 MB
1978. Forest pathology crew; Jim Hadfield center. (35260543973).jpg 3,600 × 2,289; 1.03 MB
1978. Jim Hadfield limbing pine. (35679187480).jpg 2,230 × 3,599; 1.95 MB
1979. Donald J. Goheen checking aerial survey data reports. Regional Office, Portland, Oregon. (35291755615).jpg 3,600 × 2,289; 3.28 MB
1979. Greg Filip checking section under scope. Fomes annosus study on hemlock. (35679184180).jpg 2,289 × 3,600; 1,023 KB
1979. Greg Filip making isolations for Fomes annosus study on hemlock. (34904285110).jpg 2,289 × 3,600; 3.07 MB
1979. Greg Filip making isolations for Fomes annosus study on hemlock. (35125387402).jpg 3,600 × 2,443; 3.97 MB
1979. Greg Filip making isolations for Fomes annosus study on hemlock. (35260542153).jpg 3,600 × 2,289; 3.38 MB
1979. Greg Filip measuring radial growth on hemlock for Fomes annosus study. (35679182620).jpg 3,600 × 2,391; 3.6 MB
1980. Cutting for Fomes annosus. Cache Mountain. Deschutes National Forest, Oregon. (35935607601).jpg 3,600 × 2,289; 5.22 MB
1980. Forest pathologists. L-R Alan Kanaskie (Oregon Department of Forestry), Greg Filip, + 2 unidentified. Cache Mountain. Deschutes National Forest, Oregon. (34904276830).jpg 3,600 × 2,378; 4.71 MB
1980. L-R Alan Kanaskie, Greg Filip, and ?. Cache Mountain. Deschutes National Forest, Oregon. (35228871024).jpg 2,431 × 3,600; 4.16 MB
1983. Region 6 forest pathologists. Back (l-r) Craig Schmitt and Jim Hadfield. Front (l-r) Ellen Michaels Goheen, Sally Campbell, Bob Harvey. Coeur D'Alene, Idaho. (35228844834).jpg 3,599 × 2,424; 1.03 MB
1983. White pine blister rust training. Dorena presentation. (36028214986).jpg 3,599 × 2,378; 4.45 MB
1985. Disease Committe meeting. Dorena Tree Improvement Center. (36069053075).jpg 3,600 × 2,350; 4.51 MB
1989. Blue stain in lodgepole pine. (35553680073).jpg 4,358 × 2,918; 1.04 MB
1989. Fir mortality caused by western spruce budworm, Douglas-fir bark beetle, and root diseases. Ochoco National Forest, Oregon. (41116559274).jpg 2,641 × 3,953; 2.08 MB
1996. Diane Hildebrand. USFS pathologist. 50 Years of Aerial Survey celebration. World Trade Center. Portland, Oregon. (36068962415).jpg 2,394 × 3,600; 4.03 MB
1996. Don Goheen. 50 Years of Aerial Survey celebration. World Trade Center. Portland, Oregon. (36068955815).jpg 2,289 × 3,600; 3.65 MB
1996. Forest pathologist Sally Campbell. 50 Years of Aerial Survey celebration. World Trade Center. Portland, Oregon. (35260340013).jpg 2,289 × 3,600; 3.14 MB
1996. Forest pathologists Craig L. Schmitt (left) and James S. Hadfield at the 50 Years of Aerial Survey celebration in Portland, Oregon. (34623079543).jpg 3,957 × 2,661; 4.98 MB
1996. USFS aerial observers Rayburn Mitchell and Ellen Michaels Goheen. 50 Years of Aerial Survey celebration. World Trade Center, Portland, Oregon. (35291858545).jpg 3,600 × 2,422; 1.28 MB
1996. USFS pathologist Jerry Beatty. 50 Years of Aerial Survey celebration. World Trade Center. Portland, Oregon. (36068795115).jpg 2,431 × 3,600; 4.81 MB
1996. USFS pathologist Katy Marshall. 50 Years of Aerial Survey celebration. World Trade Center. Portland, Oregon. (35228721094).jpg 2,289 × 3,600; 3.39 MB
1998. Diane Hildebrand. Forest pathologist. Regional Office, Portland, Oregon. (38302746714).jpg 2,113 × 3,217; 1 MB
1998. Sally Campbell. Forest pathologist. Regional Office, Portland, Oregon. (39019134821).jpg 2,281 × 3,145; 1.12 MB
1999. Diane Hildebrand (center). Region 6 forest pathologist. (37434840026).jpg 1,024 × 768; 285 KB
1999. Keith Sprengel with Aerial Surveys for Swiss Needle Cast in Western Oregon poster by Alan Kanaskie, Mike McWilliams, Keith Sprengel, Dave Overhulser, and Jack Prukop. (39073902015).jpg 1,800 × 1,200; 144 KB
2000. Carrie Burns (WDNR) aerial observer and forest pathology technician. Aerial survey Calibration and Conformity training. (35899062312).jpg 3,600 × 2,289; 3.65 MB
2002. Jim Hart. Biological Technician with the Central Oregon Service Center. Hazard Tree Training near Sisters, Oregon. (39570618402).jpg 414 × 640; 272 KB
2003. Pilot Paul Larson, contract pilot with Eagle Flight Services, and WDNR forest pathologist and aerial observer Melanie Kallas. Aerial detection survey. (38151777805).jpg 2,272 × 1,704; 841 KB
2004. Borys Tkacz, National Forest Health Monitoring Coordinator. Forest Health Monitoring Conference, Feb. 9-13, 2004. Sedona Arizona. (35738518214).jpg 2,272 × 1,704; 1.18 MB
2004. Borys Tkacz, National Forest Health Monitoring Coordinator. Forest Health Monitoring Conference, Feb. 9-13, 2004. Sedona, Arizona. (35738521194).jpg 997 × 1,384; 1.2 MB
2005. Armillaria ostoyae root disease center. (27842688709).jpg 640 × 480; 199 KB
2005. Forest Pathologist Helen Maffei speaking at the Lewis Roth Dwarf Mistletoe Trail dedication. North Twin Lake, Deschutes National Forest, Oregon. (24732188727).jpg 1,500 × 1,000; 468 KB
2005. L-R Forest Pathologists Helen Maffei (left), Brian Geils, and Kristen Chadwick relocating permanent plot photo points on the South Rim of the Grand Canyon, Arizona. (24732193767).jpg 3,504 × 2,336; 4.39 MB
2005. Plant pathologists Helen Maffei, Lew Roth, and Jim Barrett(?) at the Lewis Roth Dwarf Mistletoe Trail dedication. North Twin Lake, Deschutes National Forest, Oregon. (24732195007).jpg 1,000 × 1,500; 546 KB
2005. Plant pathologists Kristen Chadwick, Helen Maffei, Lew Roth, and Jim Barrett(?) at the Lewis Roth Dwarf Mistletoe Trail dedication. North Twin Lake, Deschutes National Forest, Oregon. (39590309502).jpg 640 × 480; 185 KB
2005. Research plant pathologist Lew Roth (left) and forest pathologist Greg Filip. Lewis Roth Dwarf Mistletoe Trail dedication ceremony. North Twin Lake, Deschutes National Forest, Oregon. (39590309582).jpg 640 × 480; 160 KB
2005. Research plant pathologist Lew Roth (striped sweater) speaks at the Lewis Roth Dwarf Mistletoe Trail dedication. North Twin Lake, Deschutes National Forest, Oregon. (24732204777).jpg 1,500 × 1,000; 580 KB
2005. Research plant pathologist Lew Roth listens as Helen Maffei speaks at the Lewis Roth Dwarf Mistletoe Trail dedication. North Twin Lake, Deschutes National Forest, Oregon. (24732194157).jpg 1,500 × 1,000; 486 KB
2005. Research plant pathologist Lew Roth prepares to cut the ribbon. Lewis Roth Dwarf Mistletoe Trail dedication. North Twin Lake, Deschutes National Forest, Oregon. (27842687839).jpg 640 × 480; 170 KB
2005. Research plant pathologists Lew Roth (left) and Jim Barrett(?) at the Lewis Roth Dwarf Mistletoe Trail dedication. North Twin Lake, Deschutes National Forest, Oregon. (27842688109).jpg 640 × 480; 184 KB
2005. The camp at Four Mile Lake on the Winema National Forest is always designated Camp Armillaria (Greg Filip made the sign) for those who re-measure long-term Armillaria ostoyae root disease plots. (25748541138).jpg 1,775 × 1,175; 527 KB
2007. Forest pathologist Kristen Chadwick with quinine conk (Laricifomes officinalis). Central Service Center office at the Deschutes National Forest Headquarters. Bend, Oregon. (38723496575).jpg 1,920 × 2,560; 1.98 MB
2007. Forest Pathologist Kristen Chadwick with tree failure. Lake of the Woods. Fremont-Winema National Forest, Oregon. (39590308332).jpg 2,560 × 1,920; 2.25 MB
2009. Greg Filip, Regional Forest Pathologist. Region 6. Regional Office, Portland, Oregon. (36235734744).jpg 2,048 × 1,536; 626 KB
2009. Left-to-right Amy Ramsey (WDNR), Mike McWilliams (ODF) and Glenn Kohler (WDNR). Aerial survey meeting, Oregon Department of Forestry. Salem, Oregon. (36429108492).jpg 1,536 × 2,048; 476 KB
2009. Mike McWilliams at the Oregon State University library looking for historic maps to help fill in missing data in the R6 aerial survey collection. Corvallis, Oregon. (35231960060).jpg 2,048 × 1,536; 552 KB
2009. Phellinus pini conks on mountain hemlock. (27842682129).jpg 3,888 × 2,592; 1.39 MB
2010. Angel Saavedra (left) and Charles Shaw at the 58th Annual Western International Forest Disease Work Conference, held October 4-8, 2010 in Valemount, BC. (27842680789).jpg 3,888 × 2,592; 3.16 MB
2010. Armillaria ostoyae. 58th Annual Western International Forest Disease Work Conference, held October 4-8, 2010 in Valemount, BC. (24751795047).jpg 3,234 × 2,449; 933 KB
2010. Dwarf mistletoe in ponderosa pine. Malheur National Forest, Oregon. (37482496221).jpg 3,648 × 2,736; 3.47 MB
2010. Kristen Chadwick at the 58th Annual Western International Forest Disease Work Conference. held October 4-8, 2010 in Valemount, BC. (38723530115).jpg 3,888 × 2,592; 4.2 MB
2010. L-R Angel Saavedra, Charles Shaw, and Duncan Morrison at the 58th Annual Western International Forest Disease Work Conference, held October 4-8, 2010 in Valemount, BC. (27842681739).jpg 3,888 × 2,592; 3.72 MB
2010. Mike Cruikshank (Canadian Forest Service) shows Armillaria ostoyae lesions on Douglas-fir. 58th Annual Western International Forest Disease Work Conference, held October 4-8, 2010 in Valemount, BC. (38723523635).jpg 2,592 × 3,888; 3.45 MB
2010. Mike McWilliams at the 58th Annual Western International Forest Disease Work Conference, held October 4-8, 2010 in Valemount, BC. (38723526145).jpg 2,592 × 3,888; 2.8 MB
2010. Walt Thies (PNW Research, retired) at the 58th Annual Western International Forest Disease Work Conference, held October 4-8, 2010 in Valemount, BC. (38723508855).jpg 2,592 × 3,888; 3.02 MB
2011. Decay in a Douglas-fir from Phaeolus schweinitzii, brown cubicle butt rot. (38723506535).jpg 3,888 × 2,592; 5.99 MB
2011. Laminated root rot in western red cedar. Zigzag Ranger District, Mt. Hood National Forest, Oregon. (38723503075).jpg 2,592 × 3,888; 3.3 MB
2011. Laminated root rot in western red cedar. Zigzag Ranger District, Mt. Hood National Forest, Oregon. (38723504715).jpg 2,592 × 3,888; 4.89 MB
2011. Phellinus pini. (25748546148).jpg 2,592 × 3,888; 5.14 MB
2012. Forest pathologist Helen Maffei. Forest Health Protection tech meeting. Region 6 RO. Portland, Oregon. (36429126642).jpg 1,944 × 2,592; 1.85 MB
2012. Jim Hadfield at his retirement luncheon. Wenatchee Service Center. Forestry Sciences Lab, Wenatchee, Washington. (36501888761).jpg 4,000 × 3,000; 4.16 MB
2012. L-R Roy Magelssen, Connie Mehmel, Angel Saavedra, Jim Hadfield, and Darci Dickinson. Jim Hadfield retirement luncheon. Wenatchee Service Center. Forestry Sciences Lab, Wenatchee, Washington. (36501884521).jpg 4,000 × 3,000; 4.23 MB
2012. OPUS root disease crew. L-R Shawn Schroeder, Helen Maffei, Stephanie Pickard, and Greg Filip. Central Oregon. (39570617322).jpg 4,000 × 3,000; 3.28 MB
2013. Amy Ramsey. WDNR forest pathologist and aerial observer. Aerial survey planning meeting. Mt. Hood NF headquarters. Sandy, Oregon. (36551356066).jpg 1,944 × 2,592; 1.8 MB
2014. Sitka spruce tree failure from Phaeolus schweinitzii on the Hoh, Olympic National Park, Washington. (24751780937).jpg 2,500 × 1,875; 1.52 MB
2014. Sitka spruce tree failure from Phaeolus schweinitzii on the Hoh, Olympic National Park, Washington. (24751781987).jpg 2,500 × 1,875; 1.63 MB
2015. AROS (Armillaria ostoyae) Crew. Left-to-right Greg Filip, Paul Deignan, Mike Simpson, Brent Oblinger, and Helen Maffei. Klamath Ranger District, Fremont-Winema National Forest, Oregon. (24732200337).jpg 3,264 × 2,448; 3.3 MB
2015. Forest pathologist and aerial observer Brent Oblinger with USDI FWS Kodiak. Redmond, Oregon. (35488324021).jpg 960 × 960; 116 KB
2015. Forest pathologist Betsy Goodrich using a Resistograph to measure the amount of sound rind in an old growth Douglas-fir. Ohanapecosh Campground, Mt. Rainier National Park, Washington. (38201968944).jpg 3,264 × 2,448; 2.6 MB
2015. Several BLM and USFS personnel involved with the WolfPine maintenance and restoration project. Wolf Pine Timber Sale, Little River Adaptive Management Area, Umpqua National Forest, Oregon. (36399936532).jpg 1,280 × 688; 485 KB
2016. Blakey Lockman (left) and Kristen Chadwick at Mendenhall Glacier, Alaska. 2016 Western International Forest Disease Work Conference (WIFDWC). (40404206541).jpg 2,592 × 1,944; 1.68 MB
2016. Forest Pathologist Betsy Goodrich drills a tree with an electric drill to inspect internal decay. Snoqualmie Summit ski resort. Mt. Baker-Snoqualmie National Forest, Washington. (38918872041).jpg 4,032 × 3,024; 1.5 MB
2016. Forest pathologists and aerial observers, Mike McWilliams and Ellen Goheen. 70 Years of Aerial Survey celebration. Portland, Oregon. (34612992644).jpg 2,018 × 1,969; 612 KB
2016. L-R Kristen Chadwick, Beth Willhite, and Holly Kearns looking at root disease. Westside Service Center work planning meeting. Corbett, Oregon. (36433249661).jpg 4,608 × 3,456; 3.45 MB
2016. Mike McWilliams and Blakey Lockman at Mendenhall Glacier, Alaska. 2016 Western International Forest Disease Work Conference (WIFDWC). (39693434504).jpg 5,184 × 3,456; 6.32 MB
2016. Pathologist Brent Oblinger examines root disease damage. Deschutes National Forest, Oregon. (27857865568).jpg 2,448 × 3,264; 3.84 MB
2016. Ryan Singleton (left) (Silviculturist, Confederated Tribes of Warm Springs) and Brent Oblinger (Forest Pathologist) discussing drought-related damage to Douglas-fir. Warm Springs Reservation, Oregon. (35488323891).jpg 2,448 × 3,264; 2.79 MB
2017. Blakey Lockman. Region 6 Forest Health Protection annual technical meeting. Regional Office, Edith Green Wendell Wyatt Building. Portland, Oregon. (38847845302).jpg 3,291 × 3,050; 6.18 MB
2017. Bob Schroeter (left) and Don Goheen remeasuring sugar pine. WolfPine project near Glide, Oregon. (36399947412).jpg 4,000 × 3,000; 4.94 MB
2017. Brent Oblinger evaluating the effects of Armillaria root disease on the long-term OPUS monitoring plots. Fremont-Winema National Forest, Oregon. (26858710997).jpg 1,224 × 1,632; 1.19 MB
2017. Bruce Moltzan, Forest Pathologist with Forest Health Protection in the Washington Office. Kenai Peninsula, Alaska. (36898634532).jpg 3,264 × 2,448; 2.07 MB
2017. Chicken of the woods polypore and ponderosa pine cone. Spring Creek Drainage near LaGrande, Oregon. (38348077736).jpg 3,456 × 4,608; 3.49 MB
2017. Forest Pathologist Brennan Ferguson inspects a tree for root disease with a Pulaski. Mt Baker-Snoqualmie National Forest, Washington. (38032865045).jpg 2,448 × 3,264; 3.67 MB
2017. Forest Pathologist Brennan Ferguson inspects decayed roots. Mt. Rainier National Park, Washington. (38032868165).jpg 3,264 × 2,448; 3.53 MB
2017. L-R Brent Oblinger, Greg Filip, and Blakey Lockman conducting field work to evaluate the effects of Armillaria root disease on the long-term OPUS monitoring plots. Fremont-Winema National Forest, Oregon. (26858711457).jpg 1,632 × 1,224; 922 KB
2017. Lori Winton, Plant Pathologist with the Southcentral Field Office in Anchorage, Alaska. (36898635172).jpg 3,264 × 2,448; 1.98 MB
2017. White pine blister rust meeting. Regional Office, Edith Green Wendell Wyatt Building. Portland, Oregon. (38847862282).jpg 4,896 × 2,083; 6.14 MB
2018. Blighting and top dieback on a grand fir seedling growing under tanoak infected with EU1 strain of Phytophthora ramorum. Pistol River area, north of Brookings, Oregon. (26209191947).jpg 1,280 × 960; 551 KB
2018. Bruce Moltzan, Blakey Lockman, and Kristen Chadwick. Forest Health tour. Catherine Creek Thinning Project. Columbia River Gorge National Scenic Area, Washington. (40758738425).jpg 1,613 × 1,837; 2.47 MB
2018. Bruce Moltzan. Multnomah Falls, Oregon. (40939197214).jpg 2,000 × 2,992; 1.64 MB
2018. Collecting soil samples at a treated and burned SOD (Sudden Oak Death) plot. From left to right Blakey Lockman, R6 FHP; Sarah Navarro, ODF; Alan Kanaskie, ODF (retired). Chetco Bar Fire, Oregon. (26209191797).jpg 1,280 × 960; 639 KB
2018. Forest pathologists (L-R) Holly Kearns, Blakey Lockman, Bruce Moltzan, and Kristen Chadwick discussing the Eagle Creek Fire and post-fire, danger tree interactions. Multnomah Falls, Oregon. (41610499952).jpg 2,992 × 2,000; 2.27 MB
2018. Onsite at the Chetco Bar Fire to perform soil sampling on SOD (Sudden Oak Death) sites. From left to right Blakey Lockman, R6 FHP; Sarah Navarro, ODF; Jared LeBoldus, OSU; Alan Kanaskie, ODF (retired). Oregon. (41080436521).jpg 4,608 × 3,456; 2.62 MB
2018. Untreated Sudden Oak Death (SOD) plot showing tanoak mortality from NA1 strain of Phytophthora ramorum. North of Brookings, Oregon. (27208627158).jpg 4,608 × 3,456; 2.64 MB
Armillaria mycelium felts under the bark of a live infected tree - The Malheur National Forest Location of the World's Largest Living Organism (The Humongous Fungus) - fsbdev3 033146 (page 7 crop).jpg 952 × 1,269; 191 KB
Armillaria Ostoyae mushrooms at the base of a live infected grand fir - The Malheur National Forest Location of the World's Largest Living Organism (The Humongous Fungus) - fsbdev3 033146 (page 5 crop).jpg 1,501 × 1,125; 253 KB
Armillaria Rhizomorphs, or "shoe-strings" on the exposed root systems of wind-thrown diseased trees - The Malheur National Forest Location of the World's Largest Living Organism (The Humongous Fungus) - fsbdev3 033146 (page 6 crop).jpg 1,612 × 1,209; 323 KB
C.1920. An enormous redwood burl from which beautiful finishing lumber is sawed. California. (41564605571).jpg 3,922 × 4,804; 2.57 MB
C.1930. Falling an infested ponderosa pine tree. The undercut shows dark stains in sapwood caused by blue-stain fungi, which develops soon after the western pine beetle attacks the tree. CA.. (32915742873).jpg 1,353 × 1,972; 592 KB
C.1934. Tree medication studies. (38710010850).jpg 955 × 1,325; 317 KB
C.1956. A stand of mature western white pine killed by blister rust. Spirit Lake, Washington. (33620651303).jpg 4,797 × 3,792; 2.54 MB
C.1965. Personnel of the Forest Pathology and Mycorrhiza projects. Front row, left to right J. Trappe; unknown; K.Shea; D. Duff; C.Y. Li. 2nd row Unknown; E. Nelson; G. Harvey; J. Neal; P. Aho. (33683922365).jpg 2,048 × 1,391; 301 KB
C.1967. Dead young Port Orford cedars along a skid road in a farm wood lot after introduction of Phytophthora lateralis during logging of a Douglas-fir overstory. Oregon. (33593525483).jpg 4,743 × 3,787; 2.12 MB
C.1976. Aerial observer Bob Harvey. (34640193593).jpg 2,688 × 3,507; 2.88 MB
C.1977. Greg Filip. Hemlock Fomes annosus study. (36068843925).jpg 2,418 × 3,600; 1.2 MB
C.1978. James S. Hadfield, forest pathologist. (34447744374).jpg 3,599 × 2,378; 6.12 MB
C.1978. Sulphur shelf fungus. (35678894610).jpg 3,600 × 2,384; 4.4 MB
C.1979. Forest pathologist Don Goheen takes a pulaski to Ribes. (37434828956).jpg 900 × 599; 142 KB
C.1980. Forest pathologist Jim Hadfield (center) conducting a training session. (24881772817).jpg 3,599 × 2,402; 4.57 MB
C.1980. Forest pathologist Jim Hadfield (center) conducting a training session. (27972634579).jpg 3,599 × 2,402; 5 MB
C.1980. Greg Filip. Cache Mountain. Deschutes National Forest, Oregon. (34481697603).jpg 2,218 × 3,599; 3.73 MB
C.1984. Dwarf mistletoe damage. (40048842420).jpg 1,873 × 2,769; 1.15 MB
C.1984. Dwarf mistletoe damage. (40048842930).jpg 1,993 × 2,769; 803 KB
C.1984. Dwarf mistletoe damage. (40048851190).jpg 2,045 × 2,861; 1.22 MB
C.1984. Dwarf mistletoe. (40048843650).jpg 1,933 × 2,849; 1,004 KB
C.1984. Dwarf mistletoe. (40048844380).jpg 2,044 × 2,864; 1,008 KB
C.1984. Dwarf mistletoe. (40048849720).jpg 1,785 × 2,801; 771 KB
C.1984. Dwarf mistletoe. (40048851860).jpg 1,985 × 2,771; 1.05 MB
C.1984. Dwarf mistletoe. (40048853080).jpg 965 × 1,217; 358 KB
C.1984. Forest pathologist looking at a stand with dwarf mistletoe. (40048845520).jpg 1,849 × 2,785; 1.3 MB
C.1984. Forest pathologist looking at a stand with dwarf mistletoe. (40048846850).jpg 2,009 × 2,745; 1.38 MB
C.1984. Forest pathologist looking at a stand with dwarf mistletoe. (40048848040).jpg 1,997 × 2,845; 1.26 MB
C.1984. Forest pathologist looking at a stand with dwarf mistletoe. (40048849150).jpg 2,049 × 2,853; 1.29 MB
C.1984. Forest pathologist looking at a stand with dwarf mistletoe. (40048853450).jpg 959 × 1,387; 447 KB
C.1984. Forest pathologist looking at a stand with dwarf mistletoe. (40957065495).jpg 1,921 × 2,861; 1.27 MB
C.1985. Paul Hennon using shigometer on Douglas-fir root for Phellinus weirii. Note Didn't work for stain. (35260152833).jpg 2,289 × 3,600; 3.51 MB
C.2000. Jerry Beatty (left) and Borys Tkacz. (34608126324).jpg 1,411 × 1,100; 139 KB
Maps - The Malheur National Forest Location of the World's Largest Living Organism (The Humongous Fungus) - fsbdev3 033146 (page 2 crop).jpg 1,992 × 2,655; 408 KB
The Malheur National Forest Location of the World's Largest Living Organism (The Humongous Fungus) - fsbdev3 033146.pdf 1,275 × 1,650, 8 pages; 1.15 MB
TW Childs examining ponderosa pine 1958.jpg 1,113 × 1,383; 285 KB

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