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Remove Filters: Rocky Mountain Research Station/Forest Pathology Archive(X)

210 Images of 87 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
1473270 leaf spot Marssonia spp. aspen defoliation by Marssonia sp. and Melampsorella sp.; 9/4/1941
1473198 dwarf mistletoes Arceuthobium spp. horse logging at Fort Valley Experimental Forest, Wing Mt., 1939 to reduce severe infestation of southwestern dwarf mistletoe in ponderosa pine
1473079 pineland dwarf mistletoe Arceuthobium vaginatum ssp. cryptopodum embryo developing a radical and beginning to penetrate host
1473078 pineland dwarf mistletoe Arceuthobium vaginatum ssp. cryptopodum aerial shoot and fruits
1473089 aspen/poplar Populus spp. mature stand
1473195 volcanoes clearing from pyroclastic flow
1473080 fir broom rust Melampsorella caryophyllacearum
1473121 fir dwarf mistletoe Arceuthobium abietinum
1473032 western gall rust Endocronartium harknessii
1473051 western gall rust Endocronartium harknessii tumor from "nobbles disease" gall rust; there are actually two diseases here: large, upper "burl" is a tumor and lower "gall" is hips canker incited by Perdermium harknessii (a stem rust).
1473059 coronado limb rust Cronartium arizonicum aecia on twig
1473073 sooty bark Cenangium populinum
1473077 canker this has two cankers Cenaginium and Nectria
1473118 pineland dwarf mistletoe Arceuthobium vaginatum ssp. cryptopodum Infestation center from tree top
1473117 pineland dwarf mistletoe Arceuthobium vaginatum ssp. cryptopodum untreated small pole stands
1473119 pineland dwarf mistletoe Arceuthobium vaginatum ssp. cryptopodum mature female plant on branch
1473139 American dwarf mistletoe Arceuthobium americanum taken in 1965 at "King's Canyon" state unknown
1473166 stalactiform blister rust Cronartium coleosporioides
1473184 metalic wood-boring beetles Agrilus spp.
1473190 Armillaria root rots Armillaria spp. dying aspen
1473220 bacterial necrosis of giant cactus Erwinia carnegieana cut section of saguaro C-1-30 at 5'. Pith rotted from 2.5' to 7.5' and ribs discolored to 17'; 11/22/1941
1473236 elf owl Micrathene whitneyi owlet on nest in saguaro
1473221 bacterial necrosis of giant cactus Erwinia carnegieana 11/22/1941; section of saguaro C-1-86 at 10'. Phloem and xylem are discolored three-out length.
1473237 elf owl Micrathene whitneyi owlet on nest in saguaro
1473242 robustus conk Phellinus robustus indistinct conk nearly hidden in upper righ seam
1473305 fly agaric Amanita muscaria
1473306 scaly pholiota Pholiota squarrosa August 25, 1965, New Mexico
1473088 Nectria canker Nectria spp. canker after removing the thin outter bark; compare to 1473087
1473099 alder scalycap Pholiota alnicola alnicola basidiocarps
1473100 alder scalycap Pholiota alnicola alnicola basidiocarps
1473098 alder scalycap Pholiota alnicola alnicola basidiocarps
1473097 alder scalycap Pholiota alnicola alnicola basidiocarps at base of spruce
1473122 fir dwarf mistletoe Arceuthobium abietinum 7/1/1964
1473134 balsam twig aphid Mindarus abietinus
1473141 aspen/poplar Populus spp. aspen match splint mill- bolts ready for peeler
1473162 aspen/poplar Populus spp. pulp logs
1473161 pine needle cast Lophodermella cerina
1473252 pricklypear/cholla Opuntia spp. in bloom
1473262 pine needle cast Lophodermella cerina Photomicrograph
1473279 western gall rust Endocronartium harknessii hip canker; 1950
1473285 larch waxy cap Hygrophorus speciosus collected 8/1/1968, NM, Cibola Co., Zuni Mts.
1473286 shaggy parasol Chlorophyllum rhacodes Collected 8/1/1968, NM Cibola Co., Zuni Mts.
1473311 woolly chanterelle Gomphus floccosus
1473054 southwestern white-spored gall rust Peridermium (An undescribed species) White-spored gall rust with white spores and collored gall on Ponderosa pine. Although previously thought to be a white-spored variation of western gall rust, this rust is probably a distinctly separate species. A species description and valid scientific name is still pending. Mycologia, 90(2), 1998, pp244-257. http://www.jstor.org/stable/3761300
1473047 southwestern white-spored gall rust Peridermium (An undescribed species) White spores, highly contagious local distribution, separation of outer bark gives galls a 'collared' feature; when photo taken it was recognized that this rust has white spores and resembles P. harnessii. DNA data suggests these rusts in SW should be recognized as distinct taxa but not yet formally described. A species description and valid scientific name is still pending. Mycologia, 90(2), 1998, pp244-257. http://www.jstor.org/stable/3761300
1473148 needlecast Lophodermella montivaga photo taken 1967
1473281 Cytospora cankers Cytospora spp. close-up of canker in image 1473280
1473280 Cytospora cankers Cytospora spp. 1941; perennial type Valsa canker on 6.2" dbh aspen marked for cutting on sanitation plot. Upper portion of canker recent and active.
1473101 western red rot Dichomitus squalens resupinate, white conk; image source not documented but suspect from Navajo Defect Study of Red Rot by S. Andrews on Defiance Plateau, AZ
1473243 robustus conk Phellinus robustus conk in seam and hollow at junction of arms
1473244 robustus conk Phellinus robustus
1473315 Leucopaxillus giganteus Leucopaxillus giganteus sporophore; 7/23/1967
1473024 subalpine fir Abies lasiocarpa Regeneration of subalpine fir after mortality of Engelmann spruce caused by spruce beetle Dendroctonus rufipennis.
1473029 western gall rust Endocronartium harknessii Hip canker caused by the pine rust E. harnessii but most western forest pathologists use the older form-genus name Peridermium rather than the Yazu's construct.
1473156 Hypoxylon cankers Hypoxylon spp. sporophores; October 1968
1473025 spruce broom rust Chrysomyxa arctostaphyli
1473182 sunscald old trees
1473192 moose Alces alces aspen trunk damage by moose
1473321 witches broom rust Gymnosporangium nelsonii leaf rust on serviceberry, broom on juniper; 1941
1473001 spruce beetle Dendroctonus rufipennis crown view of Engelman spruce recently killed by spruce beetle
1473003 canker
1473004 decay
1473005 canker
1473014 quaking aspen Populus tremuloides
1473019 spruce broom rust Chrysomyxa arctostaphyli
1473022 ponderosa pine dwarf mistletoe Arceuthobium vaginatum mortalty of tree with a dwarf mistletoe rating of 6
1473021 Armillaria root rot Armillaria solidipes dead poles
1473023 decay butt section decay and subsequent failure
1473027 canker
1473028 canker A spruce with a broken top due to failure at a flat broad canker of unknown cause (Cytospora kunzi suspected).  
1473030 western gall rust Endocronartium harknessii
1473033 American dwarf mistletoe Arceuthobium americanum Lower infected crown of lodgepole pine; a small branch infection that is visually lost in the crown--example of how easy to overlook an infection.
1473031 western gall rust Endocronartium harknessii
1473034 American dwarf mistletoe Arceuthobium americanum infestation on ridge
1473036 porcupine Erethizon dorsatum
1473035 decay decay and failure
1473038 Hypoxylon canker of aspen Entoleuca mammata canker on stem
1473040 American dwarf mistletoe Arceuthobium americanum male flowers
1473042 American dwarf mistletoe Arceuthobium americanum male flowers
1473041 American dwarf mistletoe Arceuthobium americanum female plant
1473037 porcupine Erethizon dorsatum
1473044 American dwarf mistletoe Arceuthobium americanum female plant
1473046 frost and winter injury (general) frost crack; cross-sectional view
1473043 American dwarf mistletoe Arceuthobium americanum female plant
1473048 desert paintbrush Castilleja angustifolia dubia
1473052 comandra blister rust Cronartium comandrae bole canker with resinous and rodent chewing
1473053 stalactiform blister rust Cronartium coleosporioides
1473055 burl and decay front view
1473056 burl and decay side view
1473057 burl and decay cross-sectional view
1473058 limb rust Peridermium filamentosum aecia on twig
1473060 limb rust Peridermium filamentosum rust is killing the tree
1473061 spruce broom rust Chrysomyxa arctostaphyli broom
1473063 Cytospora canker of spruce Valsa kunzei upper crown of dying spruce
1473062 fir broom rust Melampsorella caryophyllacearum trunk canker has killed tree
1473064 pineland dwarf mistletoe Arceuthobium vaginatum ssp. cryptopodum brooms, thin crown and shoots of mistletoe in severely infected tree
1473069 American dwarf mistletoe Arceuthobium americanum cross section with endophytic system
1473068 American dwarf mistletoe Arceuthobium americanum cross section with endophytic system
1473067 bacterial wetwood Enterobacter nimipressuralis
1473065 bacterial wetwood Enterobacter nimipressuralis
1473066 bacterial wetwood Enterobacter nimipressuralis
1473070 chemicals 1960; Yellow foliage is normal fall color of aspen, the chemical damage (unknown pollutant, but probably sulfur dioxide) is the patch of dead trees at bottom of slope; 1960.  
1473071 saguaro Carnegiea gigantea cactus have bacterial necorosis, note one collapsed and others cankered
1473072 Cenangium cankers Cenangium spp. infected mature stand
1473092 comandra blister rust Cronartium comandrae dying tree girdled by rust canker
1473091 comandra blister rust Cronartium comandrae rust canker
1473094 comandra blister rust Cronartium comandrae 25' canker from comandera blister rust that has been feed upon by a porcupine
1473095 spruce broom rust Chrysomyxa arctostaphyli broom after infected needles produced in present year have shed
1473102 Armillaria root rot Armillaria solidipes mycelial fans
1473103 Armillaria root rot Armillaria mellea pathological specimens; the Armillaria is prominent in specimens on the left.  Western gall rust and a conk also pictured.
1473105 limber pine dwarf mistletoe Arceuthobium cyanocarpum female flowers and nectar
1473104 limber pine dwarf mistletoe Arceuthobium cyanocarpum mature berries
1473107 ponderosa pine dwarf mistletoe Arceuthobium vaginatum branch infections
1473106 limber pine dwarf mistletoe Arceuthobium cyanocarpum female flowers and nectar
1473111 western gall rust Endocronartium harknessii 1959; "one sided" canker
1473112 frost and winter injury (general) "red belt" of winter injury
1473116 ponderosa pine dwarf mistletoe Arceuthobium vaginatum mature female plant on ponderosa pine branch
1473120 limber pine dwarf mistletoe Arceuthobium cyanocarpum pigmy forest of infested limber pine; 9/1/1964
1473142 aspen/poplar Populus spp. aspen match splint mill- peeling
1473147 aspen/poplar Populus spp. aspen match splint mill- packing bin
1473145 aspen/poplar Populus spp. aspen match splint mill- to shaker
1473146 aspen/poplar Populus spp. aspen match splint mill- chemical bath
1473144 aspen/poplar Populus spp. aspen match splint mill- splint shredder
1473143 aspen/poplar Populus spp. aspen match splint mill- splint shredder
1473163 aspen/poplar Populus spp. pulp logs
1473177 Eutypella canker Eutypella parasitica September 1973
1473188 human caused injury
1473194 aspen/poplar Populus spp. Cutover with reproduction; silviculture experiment to see if partical cutting could stimulate sprouting (not seen here) and how much bark injury to residual stems would occur.
1473196 volcanoes Mount St. Helens in Fall 1985 (5 years after the major eruption).  Photo shows blowdown and flood; photo by B.W. Geils
1473323 limb rust Peridermium filamentosum Girdling ponderosa pine sapling on Wing Mountain after spore dissemination. 1954
1473009 aspen/poplar Populus spp. dying, mature stand
1473010 aspen/poplar Populus spp. young sprouts
1473007 burl and decay tree 368
1473008 wood decay Pholiota albocrenulata tree 396
1473026 American dwarf mistletoe Arceuthobium americanum bole infestation
1473297 delicious milk cap Lactarius deliciosus sporophore; 8/1966 Los Alamos Co., Bandelier National Monument, NM
1473308 inky cap Coprinus spp. 9/15/1965 New Mexico
1473312 lobster mushroom Hypomyces lactifluorum August 25, 1965
1473307 inky cap Coprinus spp. New Mexico 9/15/1965
1473310 birch bolete Leccinum scabrum scabrum August 25, 1965
1473295 granulated slippery jack Suillus granulatus 8/1966
1473296 granulated slippery jack Suillus granulatus 8/1966
1473304 fly agaric Amanita muscaria 9/14/1965 Sandoval Co., Jemez Mts. NM4
1473313 Ganoderma root rots Ganoderma spp. September 1962
1473316 funeral bell Galerina marginata On ponderosa pine stump. Oct. 5, 1966
1473298 purple-red waxy cap Hygrophorus purpurascens sporophore; 8/1966 Los Alamos Co., Bandelier National Monument, NM
1473301 golden clavaria Ramaria aurea 10/1968
1473248 white-winged dove Zenaida asiatica one egg in nest, 6/15/1941
1473309 fly agaric Amanita muscaria 9/14/1965 Sandoval Co., Jemez Mts. NM4
1473317 dwarf lousewort Pedicularis centranthera
1473318 dwarf lousewort Pedicularis centranthera
1473293 death cap mushroom Amanita phalloides 8/1966 Torrence Co., Manzano Mts, Tajique, NM
1473294 Clitocybe root diseases Clitocybe spp. 8/1966; 4th of July Campground
1473299 purple-red waxy cap Hygrophorus purpurascens sporophore; 8/1966 Los Alamos Co., Bandelier National Monument, NM
1473302 birch bolete Leccinum scabrum scabrum 7/17/1966 Sandoval Co., Jemez Mts. NM4
1473303 woolly chanterelle Gomphus floccosus
1473249 pricklypear/cholla Opuntia spp. 10/30/1946
1473274 mimosa wilt Fusarium oxysporum f.sp. perniciosum sap streak in wilting mimosa; 7/15/1953
1473277 Atropellis canker Atropellis piniphila 8/1/1964 Lincoln Co., Mescalero Apache Indian Reservation
1473202 bacterial necrosis of giant cactus Erwinia carnegieana soft rot; 3/18/1941 Lightle, P.C.; Standring, E.T.; Brown, J.G. (1942) Phytopathology 32(4):303-312.
1473275 mimosa wilt Fusarium oxysporum f.sp. perniciosum sap streak in wilting mimosa; 7/15/1953
1473204 bacterial necrosis of giant cactus Erwinia carnegieana diseased saguaro group; broken arm associated with soft rot; 7/2/1940 Lightle, P.C.; Standring, E.T.; Brown, J.G. (1942) Phytopathology 32(4):303-312.
1473205 bacterial necrosis of giant cactus Erwinia carnegieana inoculated with 7 fly larvae to investigate vectoring of microorganisms leading to bacterial necrosis; 10/24/1941
1473211 bacterial necrosis of giant cactus Erwinia carnegieana bulldozer digging burial pit; 11/11/1941
1473215 bacterial necrosis of giant cactus Erwinia carnegieana bulldozer digging burial pit; 11/11/1941
1473216 bacterial necrosis of giant cactus Erwinia carnegieana 12/31/1941; completed burial pit for diseased cactus
1473239 saguaro Carnegiea gigantea saguaro blossoms; 6/6/1942
1473222 bacterial necrosis of giant cactus Erwinia carnegieana 12/1941; placing tongs around saguaro section for hoisting into dump truck
1473225 bacterial necrosis of giant cactus Erwinia carnegieana disinfecting ground and debris with Calcium hypochlorite solution where diseased saguaro was dissected; 12/1941
1473230 organ pipe cactus Stenocereus thurberi healthy organ pipe cactus; 3/16/1941
1473234 bacterial necrosis of giant cactus Erwinia carnegieana large saguaro plant; soft rot and bleeding canker (not distinct in this whole cactus view) 6/1/1943
1473273 mimosa wilt Fusarium oxysporum f.sp. perniciosum in old nursery; 7/15/1953
1473199 pine needle cast Lophodermella cerina on Ponderosa pine plantation; 7/1/1967,
1473276 Atropellis canker Atropellis piniphila 8/1/1964 Lincoln Co., Mescalero Apache Indian Reservation
1473212 bacterial necrosis of giant cactus Erwinia carnegieana bulldozer digging burial pit; 11/11/1941
1473290 Cortinarius mushrooms Cortinarius spp. sporophores; 9/1/1970
1473271 Phytophthora root rot Phytophthora cinnamomi site #70, disease present since 1933 (picture taken 1953)
1473246 agave Agave spp. in bloom; 6/15/1941
1473240 saguaro Carnegiea gigantea saguaro flower and ripe fruit
1473201 bacterial necrosis of giant cactus Erwinia carnegieana soft rot; See Lightle et al (1942) Phytopathology 32:303-313; the role of preceeding injury such as lightning later described in the literature.
1473229 bacterial necrosis of giant cactus Erwinia carnegieana burial pit being levelled with bulldozer; 11/11/1941
1473278 Atropellis canker Atropellis piniphila 8/1/1964 Lincoln Co., Mescalero Apache Indian Reservation
1473247 moundlily yucca Yucca gloriosa fasciated flower stalk; 9/1/1965 Santa Cruz Co.
1473235 saguaro Carnegiea gigantea saguaro forest panorama
1473241 saguaro Carnegiea gigantea Papago Indian girl harvesting saguaro fruit
1473289 Clitocybe root diseases Clitocybe spp.
1473203 bacterial necrosis of giant cactus Erwinia carnegieana healthy and diseased saguaro; soft rot (cactus on left); Lightle, P.C.; Standring, E.T.; Brown, J.G. (1942) Phytopathology 32(4):303-312.
1473208 bacterial necrosis of giant cactus Erwinia carnegieana saguaro E-6-223 broken off at root collar due to decay and termites; Pima Co., Saguaro National Monument, 4/1/1942
1473209 bacterial necrosis of giant cactus Erwinia carnegieana Saguaro E-6-223 broken off at root collar due to decay and termites; Saguaro National Monument, 4/1942, same cactus as image 1473208
1473218 bacterial necrosis of giant cactus Erwinia carnegieana placing band around diseased saguaro before pulling the plant down; 11/22/1942
1473224 bacterial necrosis of giant cactus Erwinia carnegieana disinfecting ground and debris with Calcium hypochlorite solution where diseased saguaro was dissected; 12/1941
1473227 bacterial necrosis of giant cactus Erwinia carnegieana backfilling burial pit with scoop and truck; 12/1941
1473232 saguaro Carnegiea gigantea 10/7/1941
1473250 yucca Yucca spp. in bloom; 6/16/1941
1473251 barrel cactus Ferocactus spp. in bloom
1473272 oak wilt Ceratocystis fagacearum one week after early symptoms had appeared. Rapid leaf fall is characteristic; 7/14/1953
1473292 Ganoderma root and butt rot Ganoderma oregonense sporophore; 9/1/1970
1473291 Ganoderma root and butt rot Ganoderma oregonense sporophore; 9/1/1970
1473213 bacterial necrosis of giant cactus Erwinia carnegieana bulldozer digging burial pit; 11/11/1941
1473267 Hemiphacidium fungus Hemiphacidium planum photomicrograph
1473319 juniper broom rust Gymnosporangium speciosum 1940; telial mass
1473210 bacterial necrosis of giant cactus Erwinia carnegieana bulldozer digging burial pit for diseased cactus; 11/11/1941
1473214 bacterial necrosis of giant cactus Erwinia carnegieana bulldozer digging burial pit; 11/11/1941
1473219 bacterial necrosis of giant cactus Erwinia carnegieana sawing saguaro into sections; 12/1941
1473223 bacterial necrosis of giant cactus Erwinia carnegieana loading section of diseased saguaro with chain; 12/1941
1473226 bacterial necrosis of giant cactus Erwinia carnegieana dumping diseased saguaro sections into burial pit; 12/1941
1473233 saguaro Carnegiea gigantea large saguaro plant; 4/1942
1473282 fly agaric Amanita muscaria 8/1/1962 Coconino Co., Fort Valley, AZ
1473207 bacterial necrosis of giant cactus Erwinia carnegieana Inoculated saguaro 4-B-1 (dead), 4-A-1 (diseased), and 4-C-1 (girdled)to test pathogencity of bacteria
1473284 fly agaric Amanita muscaria 8/1/1968, Cibola Co. Zuni Mts. NM

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