Narrow Results by:

Subject Specific Filters:

  1. Genus:                  

    Cronartium (12)
    Endocronartium (1)

Image Specific Filters:

  1. Descriptor:           (show all)

    Symptoms (242)
    Sign (160)
    N/A (18)
    Damage (16)
    Fruiting Bodies (14)

Gender:

Female (1)

Image Setting:

Field (337)
Laboratory (16)
Museum (12)
Illustration (2)

  1. View:                     

    Dorsal / Abaxial / Back (2)
    Close-up (1)

Person in Image:

Yes (3)

  1. Author:                  (show all)

    Joseph O'Brien (96)
    USDA Forest Service - Ogden Archive (79)
    Robert L. Anderson (52)
    Brytten Steed (49)
    USDA Forest Service - Region 8 - Southern Archive (37)

Sizes Available:

5 sizes(399)
4 sizes(81)
3 sizes(7)

Orientation:

Landscape (280)
Portrait (204)

Cronartiaceae

Kingdom: Fungi
Phylum: Basidiomycota
Subphylum: Urediniomycotinia
Class: Urediniomycetes
Subclass: Urediniomycetidae
Order: Uredinales
Family: Cronartiaceae
Remove Filters: Conifer(X) United States(X)
487 Images of 13 Subjects View Subject List View Image Details View Thumbnails

first prev Page: next last Display:

Image Subject Name Scientific Name Description
1502006 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust life cycle - title slide
1467417 white pine blister rust Cronartium ribicola teliospores germinating to form basidiospores
1593052 white pine blister rust Cronartium ribicola Branch flag
1398218 eastern pine gall rust Cronartium quercuum Branch gall
1470127 stalactiform blister rust Cronartium coleosporioides aecia
1467412 white pine blister rust Cronartium ribicola
4215023 eastern pine gall rust Cronartium quercuum aecia
2251001 western gall rust Endocronartium harknessii wind breakage at gall site
2733022 fusiform rust Cronartium quercuum f.sp. fusiforme rust hazard map for the southeast United States
1467303 comandra blister rust Cronartium comandrae
3035084 fusiform rust Cronartium quercuum f.sp. fusiforme
2733023 fusiform rust Cronartium quercuum f.sp. fusiforme rust hazard map for the southeast United States
2733058 fusiform rust Cronartium quercuum f.sp. fusiforme canker
2652005 western gall rust Endocronartium harknessii Sporulating aecial gall on shore pine in southeast Alaska
2651042 fusiform rust Cronartium quercuum f.sp. fusiforme aecia
2251010 stalactiform blister rust Cronartium coleosporioides stem canker
2250094 white pine blister rust Cronartium ribicola infested stand
2250095 comandra blister rust Cronartium comandrae infested stand
1172029 white pine blister rust Cronartium ribicola Blister rust sporulating
0745016 fusiform rust Cronartium quercuum f.sp. fusiforme
0355061 fusiform rust Cronartium quercuum f.sp. fusiforme Aecia
0355062 white pine blister rust Cronartium ribicola canker growing from branch to main stem
0355053 eastern pine gall rust Cronartium quercuum aecia
1467269 western gall rust Endocronartium harknessii aecia
4823052 eastern pine gall rust Cronartium quercuum Distinct spherical (globose) swelling. The bright yellow spore sacs (aecia) which contain masses of yellow to orange aeciospores form in the spring.
1467011 western gall rust Endocronartium harknessii aecial gall
3035091 fusiform rust Cronartium quercuum f.sp. fusiforme pycnia
3036014 fusiform rust Cronartium quercuum f.sp. fusiforme closeup of telia
2139076 white pine blister rust Cronartium ribicola
1377028 eastern pine gall rust Cronartium quercuum Several clustered galls
1406133 sweet fern blister rust Cronartium comptoniae
1467264 western gall rust Endocronartium harknessii killed bishop pine
1199003 eastern pine gall rust Cronartium quercuum Globose galls in central Wisconsin
0355058 fusiform rust Cronartium quercuum f.sp. fusiforme branch gall
1442264 white pine blister rust Cronartium ribicola Stem swelling. July 1974
4213030 white pine blister rust Cronartium ribicola flagged branch
1457022 white pine blister rust Cronartium ribicola Aecial spore stage of white pine blister rust on main stem of a young tree.
2250099 comandra blister rust Cronartium comandrae canker on lodgepole pine
1467423 white pine blister rust Cronartium ribicola red spot race; pseudosclerotium spot
1467446 white pine blister rust Cronartium ribicola corking out
1400126 gall rust of jack pine Cronartium quercuum f.sp. banksianae Pycnial stage (honey-like droplets on the gall) of gall rust on jack pine in Wisconsin in spring.
1442040 comandra blister rust Cronartium comandrae showing aecia
1241729 stalactiform blister rust Cronartium coleosporioides
1199004 eastern pine gall rust Cronartium quercuum Globose galls typical of the pine-oak and pine-pine gall rusts on jack pine.
1301048 white pine blister rust Cronartium ribicola Aecial spore stage of white pine blister rust on main stem of a sapling.
3036001 fusiform rust Cronartium quercuum f.sp. fusiforme
2250100 western gall rust Endocronartium harknessii on ponderosa pine
1470126 gall rust of jack pine Cronartium quercuum f.sp. banksianae
1467266 western gall rust Endocronartium harknessii trunk gall
4213031 white pine blister rust Cronartium ribicola young canker
4213032 white pine blister rust Cronartium ribicola close-up view of canker margin
4213033 white pine blister rust Cronartium ribicola canker showing typical discoloration on young stem
4213042 sweet fern blister rust Cronartium comptoniae close-up view of resinosus
0355054 eastern pine gall rust Cronartium quercuum Aecial stage
3036009 fusiform rust Cronartium quercuum f.sp. fusiforme multiple branch galls
2733059 fusiform rust Cronartium quercuum f.sp. fusiforme trunk canker
3036016 fusiform rust Cronartium quercuum f.sp. fusiforme basal canker
3035092 fusiform rust Cronartium quercuum f.sp. fusiforme older infection
1467282 stalactiform blister rust Cronartium coleosporioides aecia on canker
1467265 western gall rust Endocronartium harknessii typical galls on young ponderosa pine
1467309 pinyon blister rust Cronartium occidentale
4213044 sweet fern blister rust Cronartium comptoniae canker on stem
1457021 white pine blister rust Cronartium ribicola Main stem canker girdling the main stem of a young tree.
3036019 fusiform rust Cronartium quercuum f.sp. fusiforme multiple branch cankers
1442267 comandra blister rust Cronartium comandrae
4213045 sweet fern blister rust Cronartium comptoniae cross-section of canker
1442045 western gall rust Endocronartium harknessii Frazer Experiment Forest
1457020 white pine blister rust Cronartium ribicola Fading eastern white pine with a main stem rust canker at the tree base.
4213035 white pine blister rust Cronartium ribicola canker with aecia and pitch
1301049 white pine blister rust Cronartium ribicola Dead top in eastern white pine caused by white pine blister rust.
1467003 comandra blister rust Cronartium comandrae canker; July 2, 1965
0355060 fusiform rust Cronartium quercuum f.sp. fusiforme close-up view of telia on oak leaves, the alternate host.
1442044 western gall rust Endocronartium harknessii Frazer Experiment Forest
4213041 sweet fern blister rust Cronartium comptoniae canker
4823053 eastern pine gall rust Cronartium quercuum Spherical gall with yellow aecia spore sacs.
2139071 pinyon blister rust Cronartium occidentale
4213034 white pine blister rust Cronartium ribicola canker chewed by animals
1406267 white pine blister rust Cronartium ribicola
1406266 white pine blister rust Cronartium ribicola
4213037 white pine blister rust Cronartium ribicola tree with canker and flagged branch
2250090 white pine blister rust Cronartium ribicola infested stand
1398219 eastern pine gall rust Cronartium quercuum Globose gall typical of the pine-oak and pine-pine gall rusts on jack pine. Black River State Forest, Jackson Co., WI.
3036007 fusiform rust Cronartium quercuum f.sp. fusiforme gall
1467248 white pine blister rust Cronartium ribicola flagging
1467296 comandra blister rust Cronartium comandrae constriction canker
1467247 white pine blister rust Cronartium ribicola
1436134 fusiform rust Cronartium quercuum f.sp. fusiforme
1236063 fusiform rust Cronartium quercuum f.sp. fusiforme
5061050 white pine blister rust Cronartium ribicola A "pruned" white pine, probably used as a demonstration for techniques on how to prune for control of white pine blister rust.
5061087 white pine blister rust Cronartium ribicola White pine top kill
5061089 white pine blister rust Cronartium ribicola Small "flagged branches"
5061090 white pine blister rust Cronartium ribicola An infected branch flag in a large white pine
5061091 white pine blister rust Cronartium ribicola Small branch infection
5061092 white pine blister rust Cronartium ribicola Small branch infection
5061093 white pine blister rust Cronartium ribicola Several small branch infections on a single tree
5061094 white pine blister rust Cronartium ribicola Small branch infection
1467298 comandra blister rust Cronartium comandrae
5061060 white pine blister rust Cronartium ribicola Early symptoms of white pine blister rust on the main bole of a sapling.
1467297 comandra blister rust Cronartium comandrae
1377027 eastern pine gall rust Cronartium quercuum A sporulating gall (the orange-yellow pustules are aecia)nearly girdling a jack pine branch.
1236062 fusiform rust Cronartium quercuum f.sp. fusiforme
0355055 fusiform rust Cronartium quercuum f.sp. fusiforme gall forming on branch
1236061 fusiform rust Cronartium quercuum f.sp. fusiforme
2634081 white pine blister rust Cronartium ribicola close-up view of canker margin
1442038 comandra blister rust Cronartium comandrae note absence of swelling
1467254 white pine blister rust Cronartium ribicola
1241730 stalactiform blister rust Cronartium coleosporioides Older stalactiform blister rust stem canker.
1467008 comandra blister rust Cronartium comandrae July 2, 1965
4213040 white pine blister rust Cronartium ribicola tree with dead top
1467255 white pine blister rust Cronartium ribicola rust needle spots
1467280 stalactiform blister rust Cronartium coleosporioides
1442043 white pine blister rust Cronartium ribicola flagging
1467281 stalactiform blister rust Cronartium coleosporioides
1467270 western gall rust Endocronartium harknessii atypical elongated galls
1457018 white pine blister rust Cronartium ribicola Branch flag (infected branch that has died) high in the crown of a large eastern white pine. Rust infections in the upper crowns of trees generally indicate a high local risk for infection.
1241717 white pine blister rust Cronartium ribicola Wetting branch cankers can make it easier to see the discoloration from a canker.
1467279 stalactiform blister rust Cronartium coleosporioides
1467278 stalactiform blister rust Cronartium coleosporioides
1241714 white pine blister rust Cronartium ribicola Rust causes orange or yellow discoloration of thin bark of young trees.
1241727 comandra blister rust Cronartium comandrae Comandra blister rust sporulating on a young lodgepole stem.
0355051 southern cone rust Cronartium strobilinum Aecia on swollen, infected cone
1241724 western gall rust Endocronartium harknessii Branch flagging in crown caused by western gall rust.
1241713 white pine blister rust Cronartium ribicola Stem cankers eventually girdle and kill trees.
1467300 comandra blister rust Cronartium comandrae
4213043 sweet fern blister rust Cronartium comptoniae aecia on canker
1247222 fusiform rust Cronartium quercuum f.sp. fusiforme Old canker
0886027 gall rust of Virginia pine Cronartium quercuum f.sp. virginianae Gall on Virginia pine
3035086 fusiform rust Cronartium quercuum f.sp. fusiforme pycnia
2251004 western gall rust Endocronartium harknessii hip canker
1467277 stalactiform blister rust Cronartium coleosporioides
1467415 white pine blister rust Cronartium ribicola urediospores on Ribes spp.
1241718 white pine blister rust Cronartium ribicola Branch flagging occurs after the canker has girdled the branch.
1406131 sweet fern blister rust Cronartium comptoniae
0355067 fusiform rust Cronartium quercuum f.sp. fusiforme infected seedlings
0355052 white pine blister rust Cronartium ribicola Uredia stage on alternate host Ribes
1467253 white pine blister rust Cronartium ribicola canker with route of entry (needle) shown
1467445 white pine blister rust Cronartium ribicola hypersensative response to infection
5059004 stalactiform blister rust Cronartium coleosporioides Long canker
2141067 comandra blister rust Cronartium comandrae on a seedling
5423120 eastern pine gall rust Cronartium quercuum Orange tissue showing through bark of sand pine
5054082 western gall rust Endocronartium harknessii Individual gall
5054083 western gall rust Endocronartium harknessii Gall of Peridermium harknessii
5054084 western gall rust Endocronartium harknessii Stem-girdling gall
5054085 western gall rust Endocronartium harknessii Jack pine gall rust individual gall
5054087 western gall rust Endocronartium harknessii Old gall of jack pine gall rust
5039002 western gall rust Endocronartium harknessii Jack pine gall rust, individual gall
5054089 western gall rust Endocronartium harknessii Jack pine gall rust, multiple galls
5056088 white pine blister rust Cronartium ribicola White pine blister rust inoculation trials at U.S. Forest Service Oconto River Seed Orchard
5056089 white pine blister rust Cronartium ribicola White pine blister rust inoculation trials at U.S. Forest Service Oconto River Seed Orchard
5056090 white pine blister rust Cronartium ribicola White pine blister rust inoculation trials at U.S. Forest Service Oconto River Seed Orchard
5042098 white pine blister rust Cronartium ribicola Aecial sacs of Cronartium ribicola on eastern white pine.
2175037 western gall rust Endocronartium harknessii
2175038 western gall rust Endocronartium harknessii
2175039 western gall rust Endocronartium harknessii immature gall
2175040 western gall rust Endocronartium harknessii
5048054 white pine blister rust Cronartium ribicola Overzealous pruning for white pine blister rust control.  Person in image: Mike Ostry
5034057 western gall rust Endocronartium harknessii Large gall caused by Peridermium harknessii on jack pine.
5032061 white pine blister rust Cronartium ribicola A white pine blister rust canker on a young white pine.
5032066 white pine blister rust Cronartium ribicola Top kill in white pine caused by white pine blister rust.
5034007 eastern pine gall rust Cronartium quercuum Jack pine gall rust galls.
5335020 eastern pine gall rust Cronartium quercuum
1501104 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust infected seedlings; Greenhouse
5366989 comandra blister rust Cronartium comandrae Signs of comandra rust (Cronartium comandrae), exposed by squirrels, under the bark of a lodgepole pine.
1263083 eastern pine gall rust Cronartium quercuum Aecia
0746049 fusiform rust Cronartium quercuum f.sp. fusiforme Slash pine (Pinus elliottii) growing near Miley, South Carolina, with various symptoms caused by Cronartium quercuum f. sp. fusiforme, including stem and branch galls, basal whorls of galls, mortality, wind breakage (stems weakened by the disease).
0746050 fusiform rust Cronartium quercuum f.sp. fusiforme Slash pine (Pinus elliottii) growing near Miley, South Carolina, with various symptoms caused by Cronartium quercuum f. sp. fusiforme, including stem and branch galls, basal whorls of galls, mortality and wind breakage (stems weakened by the disease)
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
1473166 stalactiform blister rust Cronartium coleosporioides
1473279 western gall rust Endocronartium harknessii hip canker; 1950
1473322 western gall rust Endocronartium harknessii Cankers on 30" dbh lodgepole pine. 1953
2144076 pinyon blister rust Cronartium occidentale Sporulating canker erupting through bark with older infection area visible
5366979 white pine blister rust Cronartium ribicola Currant leaf showing signs of white pine blister rust (Cronartium ribicola).
5366990 comandra blister rust Cronartium comandrae "Spike top" symptom of comandra rust (Cronartium comandrae) in a lodgepole pine.
5366988 comandra blister rust Cronartium comandrae Signs of comandra rust (Cronartium comandrae) on the limb of a lodgepole pine.
5366987 comandra blister rust Cronartium comandrae Signs of comandra rust (Cronartium comandrae) on the trunk of a lodgepole pine.
5366986 comandra blister rust Cronartium comandrae Signs of comandra rust (Cronartium comandrae) on the trunk of a pine.
5366985 comandra blister rust Cronartium comandrae Comandra plant showing signs of comandra blister rust (Cronartium comandrae), which affects pines.
5366984 comandra blister rust Cronartium comandrae Comandra plant showing signs of comandra blister rust (Cronartium comandrae), which affects pines.
5366983 comandra blister rust Cronartium comandrae Comandra plant showing signs of comandra blister rust (Cronartium comandrae), which affects pines.
5366982 white pine blister rust Cronartium ribicola Signs of white pine blister rust (Cronartium ribicola) on the trunk of a sugar pine.  
5366981 white pine blister rust Cronartium ribicola Signs of white pine blister rust (Cronartium ribicola) on a branch of limber pine.
5366980 white pine blister rust Cronartium ribicola Signs of white pine blister rust (Cronartium ribicola) on a branch of limber pine.
5366966 western gall rust Endocronartium harknessii Pine tree in a plantation showing symptoms of western gall rust.
5366965 western gall rust Endocronartium harknessii Hip canker of western gall rust (Endocronartium harknessii) on a lodgepole pine.
5357475 eastern pine gall rust Cronartium quercuum Ponderosa pine showing symptoms of eastern pine gall rust caused by the fungus Cronatium quercuum.
5362139 white pine blister rust Cronartium ribicola Close-up view of the aecia of white pine blister rust (Cronartium ribicola) on the branch of a pine tree.
5362137 white pine blister rust Cronartium ribicola Aecia of white pine blister rust (Cronartium ribicola) on the trunk of a pine tree.
2143070 pinyon blister rust Cronartium occidentale with pitch mass borer (Diorychtria spp.)
2143071 pinyon blister rust Cronartium occidentale old canker with possible pitch mass borer;
2143072 pinyon blister rust Cronartium occidentale old canker with possible pitch mass borer
2143075 pinyon blister rust Cronartium occidentale cut end of branch showing canker cross-section;
2143076 pinyon blister rust Cronartium occidentale sporulating canker erupting through bark;
2143077 pinyon blister rust Cronartium occidentale sporulating canker erupting through bark;
2143078 pinyon blister rust Cronartium occidentale sporulating canker erupting through bark;
2143079 pinyon blister rust Cronartium occidentale sporulating canker erupting through bark;
2143080 pinyon blister rust Cronartium occidentale branch with sporulating canker and a branch of Ribes sp.
2143081 pinyon blister rust Cronartium occidentale old canker with possible bark beetle frass;
2143083 pinyon blister rust Cronartium occidentale flagging branch showing the causal canker; Ribes spp. twig along side
2143084 pinyon blister rust Cronartium occidentale cutting branch samples with pole pruner;
2143085 pinyon blister rust Cronartium occidentale bark removed to show sporulating canker
2143087 pinyon blister rust Cronartium occidentale cut end of branch showing canker cross-section
2143088 pinyon blister rust Cronartium occidentale cut end of branch showing canker cross-section
2143089 pinyon blister rust Cronartium occidentale bark removed to show sporulating canker
2143090 pinyon blister rust Cronartium occidentale sporulating canker
2143091 pinyon blister rust Cronartium occidentale sporulating canker
2143092 pinyon blister rust Cronartium occidentale old canker with pitch mass borer frass visible
2143094 pinyon blister rust Cronartium occidentale infected branch cut into sections for transport
2143095 pinyon blister rust Cronartium occidentale infected branch cut into sections for transport
2145040 pinyon blister rust Cronartium occidentale new blister eruptions;
2145041 pinyon blister rust Cronartium occidentale rough bark around infection;
2145054 pinyon blister rust Cronartium occidentale Rough bark on tree with some removed to expose sporulating canker (older pitch mass borer also visible);
2145055 pinyon blister rust Cronartium occidentale Rough bark on tree with some removed to expose sporulating canker;
2145056 pinyon blister rust Cronartium occidentale Rough bark on tree with some removed to expose sporulating canker;
2145057 pinyon blister rust Cronartium occidentale old canker on bole
2145058 pinyon blister rust Cronartium occidentale Rough bark on tree with some removed to expose sporulating canker;
2145061 pinyon blister rust Cronartium occidentale Discolored, rough bark with sporulating canker visible below pitch mass borer;
2145062 pinyon blister rust Cronartium occidentale Discolored, rough bark with several sporulating cankers visible;.
2145063 pinyon blister rust Cronartium occidentale regeneration tree killed by canker;
2145064 pinyon blister rust Cronartium occidentale old canker on regeneration tree;
2145065 pinyon blister rust Cronartium occidentale old canker on regeneration tree;
2145066 pinyon blister rust Cronartium occidentale old canker on regeneration tree;
2145067 pinyon blister rust Cronartium occidentale old canker on regeneration tree;
2145068 Cronartium gall rusts Cronartium spp.
2145069 pinyon blister rust Cronartium occidentale Rough bark and pitching with sporulating canker exposed;
2145070 pinyon blister rust Cronartium occidentale Rough bark and pitching with sporulating canker exposed;
2145071 pinyon blister rust Cronartium occidentale Rough bark and pitching with sporulating canker exposed;
2145072 pinyon blister rust Cronartium occidentale Tree crown with many dead branches due largely to pinyon blister rust infections;
2145074 pinyon blister rust Cronartium occidentale old canker on dead branch;
2145075 pinyon blister rust Cronartium occidentale branch mortality;
2145078 pinyon blister rust Cronartium occidentale branch mortality;
2145079 pinyon blister rust Cronartium occidentale Sporulating canker exposed;
2145080 pinyon blister rust Cronartium occidentale rough bark;
5014072 pinyon blister rust Cronartium occidentale branch flagging resulting from infection
2141066 comandra blister rust Cronartium comandrae
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.
1473030 western gall rust Endocronartium harknessii
1473031 western gall rust Endocronartium harknessii
1473052 comandra blister rust Cronartium comandrae bole canker with resinous and rodent chewing
1473053 stalactiform blister rust Cronartium coleosporioides
1473091 comandra blister rust Cronartium comandrae rust canker
1473092 comandra blister rust Cronartium comandrae dying tree girdled by rust canker
1473094 comandra blister rust Cronartium comandrae 25' canker from comandera blister rust that has been feed upon by a porcupine
1473111 western gall rust Endocronartium harknessii 1959; "one sided" canker
1398220 eastern pine gall rust Cronartium quercuum Globose gall typical of the pine-oak and pine-pine gall rusts on jack pine. Black River State Forest, Jackson Co., WI.
1520104 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust in a nursery bed
1509089 white pine blister rust Cronartium ribicola White pine blister rust symptoms
1509092 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust
1501094 eastern pine gall rust Cronartium quercuum Eastern gall rust
1501099 comandra blister rust Cronartium comandrae Comandra blister rust; loblolly pine
1501102 comandra blister rust Cronartium comandrae Comandra blister rust - fusiform rust comparison
1501096 eastern pine gall rust Cronartium quercuum Eastern gall rust; Va. Pine
1503054 southern cone rust Cronartium strobilinum Cone rust; slash pine; Cronartium strobilinum
1501087 white pine blister rust Cronartium ribicola White pine blister rust
1501088 white pine blister rust Cronartium ribicola White pine blister rust
1501090 white pine blister rust Cronartium ribicola White pine blister rust
1501091 white pine blister rust Cronartium ribicola White pine blister rust
1501093 white pine blister rust Cronartium ribicola White pine blister rust
1501103 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust infected seedlings
1502008 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; tree breakage at canker
1502009 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; stand showing many cankers
1502011 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; stand showing many cankers
1502012 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; stand showing many cankers
1502013 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; branch gall
1502014 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; aecial fruiting on stem gall
1502015 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; aecial fruiting on stem gall
1502016 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; stem gall
1502020 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; stem gall causing "cabbage"
1502023 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; stem gall
1502024 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; stem gall
1502025 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; stem gall
1502027 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; stem gall
1502028 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; fruiting aecial stage
1502029 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; fruiting aecial stage
1502030 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; fruiting aecial stage
1502032 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; fruiting branch canker (aecia)
1502033 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; fruiting aecial stage
1502034 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; fruiting aecial stage
1502035 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; fruiting aecial stage
1502036 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; fruiting aecial stage
1503052 southern cone rust Cronartium strobilinum Cone rust; slash pine
1501101 comandra blister rust Cronartium comandrae Comandra blister rust; shortleaf pine; Buffalo Road
1502031 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; fruiting aecial stage - lob pine
1503053 southern cone rust Cronartium strobilinum Cone rust; slash pine; North Lake City
5030002 western gall rust Endocronartium harknessii Single gall on jack pine
5030003 western gall rust Endocronartium harknessii Sporulating gall
5030004 western gall rust Endocronartium harknessii Sporulating gall
5030005 western gall rust Endocronartium harknessii Non-sporulating gall
5030006 western gall rust Endocronartium harknessii Sporulating gall, almost girdling a sapling
5030007 western gall rust Endocronartium harknessii Multiple galls
5030008 western gall rust Endocronartium harknessii Multiple galls
5030009 western gall rust Endocronartium harknessii Sporulating gall
5030010 western gall rust Endocronartium harknessii Sporulating gall
5030011 western gall rust Endocronartium harknessii
5030012 western gall rust Endocronartium harknessii Small gall
5030013 western gall rust Endocronartium harknessii Single gall on jack pine branch.
3036020 white pine blister rust Cronartium ribicola canker on main stem, VA
3036015 fusiform rust Cronartium quercuum f.sp. fusiforme fruiting gall on stem
3035085 white pine blister rust Cronartium ribicola test outplantings of white pine, Dorena OR
3035083 comandra blister rust Cronartium comandrae Aecia of comandra rust on pine stem and brach
3036002 comandra blister rust Cronartium comandrae Aecial pustules on commandra rust on pine branch
3035082 eastern pine gall rust Cronartium quercuum
3036006 eastern pine gall rust Cronartium quercuum Aecial stage of eastern gall rust on pine, VA
3036011 white pine blister rust Cronartium ribicola Aecial stage on branch
3036017 eastern pine gall rust Cronartium quercuum Pycnial ooze on stem of pine
1501105 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; point of infection; Greenhouse
1502001 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; uredia on oak leaf; greenhouse
1502002 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; Pyvnial ooze; greenhouse
1502003 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; pycnial ooze; greenhouse
1502004 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; pycnial ooze; greenhouse
1502005 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform rust; pycnial ooze; greenhouse
3036005 western gall rust Endocronartium harknessii 5 yr old scots pine
4214090 eastern pine gall rust Cronartium quercuum gall
5032062 white pine blister rust Cronartium ribicola copious resin flow
5032064 white pine blister rust Cronartium ribicola small branch infection
5032065 white pine blister rust Cronartium ribicola telia on Ribes sp.
5037034 western gall rust Endocronartium harknessii
5061027 white pine blister rust Cronartium ribicola
5061029 white pine blister rust Cronartium ribicola
5061030 white pine blister rust Cronartium ribicola
5061031 white pine blister rust Cronartium ribicola
5061032 white pine blister rust Cronartium ribicola
5061033 white pine blister rust Cronartium ribicola
5061036 white pine blister rust Cronartium ribicola
5061038 white pine blister rust Cronartium ribicola
5061041 white pine blister rust Cronartium ribicola
5061042 white pine blister rust Cronartium ribicola
5061043 white pine blister rust Cronartium ribicola
5061044 white pine blister rust Cronartium ribicola
5061047 white pine blister rust Cronartium ribicola
5061048 white pine blister rust Cronartium ribicola
5061052 white pine blister rust Cronartium ribicola
5061053 white pine blister rust Cronartium ribicola
5061054 white pine blister rust Cronartium ribicola
5061055 white pine blister rust Cronartium ribicola on alternate host
5061056 white pine blister rust Cronartium ribicola on alternate host
5061057 white pine blister rust Cronartium ribicola on alternate host
5061058 white pine blister rust Cronartium ribicola on alternate host
5061059 white pine blister rust Cronartium ribicola on alternate host
5061063 white pine blister rust Cronartium ribicola
5061064 white pine blister rust Cronartium ribicola
5061066 white pine blister rust Cronartium ribicola
5061067 white pine blister rust Cronartium ribicola
5061070 white pine blister rust Cronartium ribicola
5061071 white pine blister rust Cronartium ribicola
5061075 white pine blister rust Cronartium ribicola cankers
5061083 white pine blister rust Cronartium ribicola
5061084 white pine blister rust Cronartium ribicola
5061086 white pine blister rust Cronartium ribicola and porcupine damage
5047035 white pine blister rust Cronartium ribicola aecia
5047036 white pine blister rust Cronartium ribicola aecia
5047037 white pine blister rust Cronartium ribicola canker
5061077 white pine blister rust Cronartium ribicola rust cankers
5061078 white pine blister rust Cronartium ribicola
5061079 white pine blister rust Cronartium ribicola rust cankers
5061080 white pine blister rust Cronartium ribicola rust cankers
5061081 white pine blister rust Cronartium ribicola rust canker
5032048 white pine blister rust Cronartium ribicola rust cankers
5032051 white pine blister rust Cronartium ribicola
5032052 white pine blister rust Cronartium ribicola
5061046 white pine blister rust Cronartium ribicola
5050007 comandra blister rust Cronartium comandrae
5050008 comandra blister rust Cronartium comandrae
5050009 comandra blister rust Cronartium comandrae
5050010 comandra blister rust Cronartium comandrae
3227010 Cronartium gall rusts Cronartium spp. aecial spores
2139072 pinyon blister rust Cronartium occidentale
2139073 pinyon blister rust Cronartium occidentale
2139075 stalactiform blister rust Cronartium coleosporioides canker
1467416 white pine blister rust Cronartium ribicola telial horns
1467419 white pine blister rust Cronartium ribicola basidiospore germinating in stomata; 40x with flourescence
1467420 white pine blister rust Cronartium ribicola pseudosclerotium; 38um microtome section; red spot color bleached by water
1467421 white pine blister rust Cronartium ribicola red-green-island race; pseudosclerotium spot
1467422 white pine blister rust Cronartium ribicola red spot race; pseudosclerotium spot
1467447 white pine blister rust Cronartium ribicola premature shedding of infected needles
1467448 white pine blister rust Cronartium ribicola slow fungus growth and tolerance; basal canker - 20-year-old canker on 21-year-old tree
1467449 white pine blister rust Cronartium ribicola commercial production of resistant seed in Moscow breeding arboretum
1467450 white pine blister rust Cronartium ribicola high mortality
1467451 white pine blister rust Cronartium ribicola after heavy mortality; ready for regeneration of naturally selected seedlings
1467413 white pine blister rust Cronartium ribicola aeciospores; usually produced on cankers at least 2 years old; May 1976
1467414 white pine blister rust Cronartium ribicola alternate host
1467424 white pine blister rust Cronartium ribicola yellow spot race; pseudosclerotium spot
1467425 white pine blister rust Cronartium ribicola yellow-green-island race; pseudosclerotium spot
1467426 white pine blister rust Cronartium ribicola incipient canker
1467427 white pine blister rust Cronartium ribicola pycniospores produced 6 months to 3 years later
1467428 white pine blister rust Cronartium ribicola girdling caused by canker
1467429 white pine blister rust Cronartium ribicola phenotypically resistant trees selected from areas of high rust incidence
1467430 white pine blister rust Cronartium ribicola pollen to be collected from phenotypically resistant trees in areas of high rust incidence
1467431 white pine blister rust Cronartium ribicola pollen to be collected from phenotypically resistant trees in areas of high rust incidence
1467432 white pine blister rust Cronartium ribicola female strobili; pollen from male flowers collected from phenotypically resistant trees in areas of high rust incidence for pollenation
1467433 white pine blister rust Cronartium ribicola pollen collected from phenotypically resistant trees in areas of high rust incidence; bags applied to prevent insect damage
1467434 white pine blister rust Cronartium ribicola pollen collected from phenotypically resistant trees in areas of high rust incidence; bags applied to prevent insect damage
1467435 white pine blister rust Cronartium ribicola pollen collected from phenotypically resistant trees in areas of high rust incidence; bags applied to prevent insect damage
1467436 white pine blister rust Cronartium ribicola pollen collected from phenotypically resistant trees in areas of high rust incidence; bags applied to prevent insect damage
1467437 white pine blister rust Cronartium ribicola pollen collected from phenotypically resistant trees in areas of high rust incidence; bags applied to prevent insect damage
1467438 white pine blister rust Cronartium ribicola pollen collected from phenotypically resistant trees in areas of high rust incidence; cones collected and placed in greenhouse to dry
1467439 white pine blister rust Cronartium ribicola pollen collected from phenotypically resistant trees in areas of high rust incidence; seeds from collected cones planted for progeny testing
1467440 white pine blister rust Cronartium ribicola pollen collected from phenotypically resistant trees in areas of high rust incidence; seeds from collected cones planted for progeny testing; tents constructed for artificial inoculation
1467441 white pine blister rust Cronartium ribicola pollen collected from phenotypically resistant trees in areas of high rust incidence; seeds from collected cones planted for progeny testing; tents used for artificial inoculation; infected wild Ribes spp. leaves placed over seedlings
1467442 white pine blister rust Cronartium ribicola pollen collected from phenotypically resistant trees in areas of high rust incidence; seeds from collected cones planted for progeny testing; tents used for artificial inoculation; infected wild Ribes spp. leaves placed over seedlings; 100% relative humidity fo 4 days
1467443 white pine blister rust Cronartium ribicola pollen collected from phenotypically resistant trees in areas of high rust incidence; seeds from collected cones planted for progeny testing; tents used for artificial inoculation; infected wild Ribes spp. leaves placed over seedlings; 100% relative humidity for 4 days
1467444 white pine blister rust Cronartium ribicola pollen collected from phenotypically resistant trees in areas of high rust incidence; seeds from collected cones planted for progeny testing; tents used for artificial inoculation; infected wild Ribes spp. leaves placed over seedlings; inspection for infections
1467301 comandra blister rust Cronartium comandrae aecia formed on canker
1467302 comandra blister rust Cronartium comandrae aecia on canker
1467299 comandra blister rust Cronartium comandrae
1467304 comandra blister rust Cronartium comandrae
1467306 comandra blister rust Cronartium comandrae infection on alternate host; note blue rhizomes
1467307 comandra blister rust Cronartium comandrae telia
1467308 comandra blister rust Cronartium comandrae germinating aeciospore
1467310 pinyon blister rust Cronartium occidentale telia
1467252 white pine blister rust Cronartium ribicola aecia
1467256 white pine blister rust Cronartium ribicola
1467257 white pine blister rust Cronartium ribicola uredia on underside of leaves
1467258 white pine blister rust Cronartium ribicola telia on underside of leaves
1467259 white pine blister rust Cronartium ribicola telial columns
1467271 western gall rust Endocronartium harknessii germinating aeciospores
1467268 western gall rust Endocronartium harknessii aecia
1241721 western gall rust Endocronartium harknessii Branch gall as they normally appear.
1241722 western gall rust Endocronartium harknessii Branch gall sporulating.
1241723 western gall rust Endocronartium harknessii Stem ("hip") canker caused by western gall rust.
1457019 white pine blister rust Cronartium ribicola Aecial spore stage of white pine blister rust on main stem of a small tree.
1406132 sweet fern blister rust Cronartium comptoniae
1388001 white pine blister rust Cronartium ribicola Pathological pruning. Northern Minnesota
1198029 eastern pine gall rust Cronartium quercuum Indistinguishable from western gall rust (pine-pine rust, Endocronartium harknessii) without microscopic examination of spore germination.
1271005 white pine blister rust Cronartium ribicola Aecia on bole/truck. Mount Hood National Forest. Northern Oregon Cascades.
1247221 fusiform rust Cronartium quercuum f.sp. fusiforme Aeciospores
1247085 fusiform rust Cronartium quercuum f.sp. fusiforme Branch canker
1361148 fusiform rust Cronartium quercuum f.sp. fusiforme
1301050 white pine blister rust Cronartium ribicola Ueredinial stage.
1501098 comandra blister rust Cronartium comandrae
1241728 comandra blister rust Cronartium comandrae Comandra blister rust sporulation causing rough bark.
1241719 white pine blister rust Cronartium ribicola Spindle-shaped swelling is an early indication of branch infections. This infection is also sporulating.
1241720 white pine blister rust Cronartium ribicola Spores are produced within the blisters.
1241715 white pine blister rust Cronartium ribicola Rust sporulating on the bole of an infected tree.
1241716 white pine blister rust Cronartium ribicola Basal canker.
1171042 white pine blister rust Cronartium ribicola Blister rust flagging branch
1210058 western gall rust Endocronartium harknessii
0355056 fusiform rust Cronartium quercuum f.sp. fusiforme branch gall
1442119 fusiform rust Cronartium quercuum f.sp. fusiforme sporulating
1442039 comandra blister rust Cronartium comandrae
1442042 white pine blister rust Cronartium ribicola
1442046 western gall rust Endocronartium harknessii
1436135 eastern pine gall rust Cronartium quercuum
1404038 fusiform rust Cronartium quercuum f.sp. fusiforme Stem cankers ignited by the high flame heights of strip heading fires. Bainbridge, Georgia
1429044 fusiform rust Cronartium quercuum f.sp. fusiforme rust screening test
0355057 fusiform rust Cronartium quercuum f.sp. fusiforme closeup view of telia
2251002 western gall rust Endocronartium harknessii gall on young pine
2733024 fusiform rust Cronartium quercuum f.sp. fusiforme on bareroot nursery seedlings
3035089 fusiform rust Cronartium quercuum f.sp. fusiforme
3035081 fusiform rust Cronartium quercuum f.sp. fusiforme
3036008 fusiform rust Cronartium quercuum f.sp. fusiforme
3036013 fusiform rust Cronartium quercuum f.sp. fusiforme
4824066 fusiform rust Cronartium quercuum f.sp. fusiforme Galls at seedling root-collar.
4823044 southern cone rust Cronartium strobilinum Infected first-year conelets swell rapidly by April and are often three to four times larger than disease-free cones. Infected conelet - left, normal conelet - right.
4823045 southern cone rust Cronartium strobilinum Infected first-year conelets swell rapidly by April and are often three to four times larger than disease-free cones. Note bright yellow aeciospores forming on the large infected cone on the right.
4823046 southern cone rust Cronartium strobilinum Infected swollen first year cone displaying powdery masses of yellow-orange aeciospores
4823047 southern cone rust Cronartium strobilinum Swollen infected first year cones with yellow-orange masses of aeciospores
4823048 southern cone rust Cronartium strobilinum infected cone with yellow-orange aeciospore masses (top) and normal green cone (bottom)
4213038 white pine blister rust Cronartium ribicola larger tree with stem canker showing characteristic pitch
4213039 white pine blister rust Cronartium ribicola upper half of tree is dead
4213036 white pine blister rust Cronartium ribicola aecia
2251003 western gall rust Endocronartium harknessii cankers
2251005 western gall rust Endocronartium harknessii branch gall
2251006 stalactiform blister rust Cronartium coleosporioides alternate pedicularis host
2251007 stalactiform blister rust Cronartium coleosporioides aecia
2251008 stalactiform blister rust Cronartium coleosporioides telia on alternate Castilleja host
2251009 stalactiform blister rust Cronartium coleosporioides Castelloia alternate host
2251011 stalactiform blister rust Cronartium coleosporioides cross-section of canker
3227009 Cronartium gall rusts Cronartium spp. aecial stage
4215022 eastern pine gall rust Cronartium quercuum pycnia
2250089 white pine blister rust Cronartium ribicola ribes/inocolum
2250091 white pine blister rust Cronartium ribicola aecia
2250092 white pine blister rust Cronartium ribicola aecia
2250093 white pine blister rust Cronartium ribicola aecia on white bark pine
2250096 comandra blister rust Cronartium comandrae aecia
2250098 comandra blister rust Cronartium comandrae telia on comandra plant
0364063 white pine blister rust Cronartium ribicola Pycnia
0364064 white pine blister rust Cronartium ribicola Aecia
0355068 fusiform rust Cronartium quercuum f.sp. fusiforme pycnia
0364005 fusiform rust Cronartium quercuum f.sp. fusiforme close-up view of telia on oak
0355063 fusiform rust Cronartium quercuum f.sp. fusiforme pycnia
0355064 fusiform rust Cronartium quercuum f.sp. fusiforme uredinia on oak leaf
0355065 fusiform rust Cronartium quercuum f.sp. fusiforme close-up view of uredinia and telia
0355066 fusiform rust Cronartium quercuum f.sp. fusiforme Pycnia
0355059 fusiform rust Cronartium quercuum f.sp. fusiforme tree broken by wind at canker
0355027 fusiform rust Cronartium quercuum f.sp. fusiforme canker on loblolly pine

Page: