| 1573313 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Gummy stem blight typically starts at leaf margins. Note the small black dots (pycnidia of the pathogen) in the tan lesion. June 1997 |
| 5492323 |
leaf spot of maize |
Bipolaris zeicola |
NCLS spores developing from a lesion on a leaf |
| 5492318 |
early blight |
Alternaria solani |
External and internal view of Early Blight lesions; note symptoms within this tuber are shallow. |
| 5492319 |
early blight |
Alternaria solani |
Large lesion on tuber infected with Early Blight pathogen Alternaria solani |
| 5492320 |
early blight |
Alternaria solani |
Shallow symptoms in potato tuber flesh where skin cut away from lesion of tuber infected with Alternaria solani |
| 5492303 |
early blight |
Alternaria solani |
Four Alternaria solani isolates growing on acidified potato dextrose agar (APDA) and showing colony variation and yellow pigmentation of the agar. |
| 5486243 |
apple scab |
Venturia inaequalis |
Apple scab on crabapple |
| 5488379 |
Alternaria fungus |
Alternaria papaveris |
Mycelium on leaf underside |
| 5486045 |
maple cankers |
Stegonsporium spp. |
Conidia |
| 5486046 |
maple cankers |
Stegonsporium spp. |
Acervuli on branch |
| 5486042 |
maple cankers |
Stegonsporium spp. |
Acervuli on branch |
| 5486043 |
maple cankers |
Stegonsporium spp. |
Conidia |
| 5486044 |
maple cankers |
Stegonsporium spp. |
Vertical section of acervulus with conidia |
| 5488384 |
Alternaria fungus |
Alternaria papaveris |
Symtomatic infected plant |
| 5488383 |
Alternaria fungus |
Alternaria papaveris |
Conidia and conidiophores |
| 5488381 |
Alternaria fungus |
Alternaria papaveris |
Conidia |
| 5488382 |
Alternaria fungus |
Alternaria papaveris |
Conidia and conidiophores |
| 5488380 |
Alternaria fungus |
Alternaria papaveris |
Conidia form on leaf underside |
| 5485050 |
Phaeosphaeria fungi |
Sphaerellopsis spp. |
The orange pustules are the urediniospores of the rust fungus Puccinia zoysia. The black structures are pycnidia of the fungus Darluca sp. that is parasitizing Puccinia zoysia. |
| 5485054 |
Phaeosphaeria fungi |
Sphaerellopsis spp. |
Conidia of Darluca, a fungus that is parasitizing Puccinia zoysia. |
| 1574155 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Micrograph of pycnidia of D. bryoniae on cucumber cultivar Napoleon at 31X magnification. |
| 1574153 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Micrograph of pycnidia of D. bryoniae on cucumber cultivar Napoleon. |
| 1574152 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Gummy stem blight caused the large lesion in the center. Other smaller lesions were caused by target spot. |
| 1574151 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Gummy stem blight caused the large lesion in the center. Other smaller lesions were caused by target spot. |
| 1574150 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Fruiting bodies (pycnidia) of the pathogen are evident in the lesion as tiny black dots. |
| 1574149 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 1574007 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Watermelon plants left untreated can become completely necrotic from gummy stem blight (see 1574009 for comparison with treated plot). September 1997 |
| 1574009 |
gummy stem blight (vine decline) |
Didymella bryoniae |
This research plot was treated with chlorothalonil (Bravo) or mancozeb and controlled gummy stem blight very well (see 1574007 for comparison with untreated plot). September 1997 |
| 1574008 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Small plot research on fungicidal control of gummy stem blight showing various levels of disease control. September 1997 |
| 1574006 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Close-up of small gummy stem blight lesions. September 1997 |
| 1574004 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Close-up of lesion at leaf margin, where infection usually begins. September 1997 |
| 1574005 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Severely diseased leaf. September 1997 |
| 1574001 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Rot progressing from the blossom end of fruit. September 1997 |
| 1574002 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Pycnidia on stem lesion. September 1997 |
| 1574003 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Pycnidia on stem lesion. September 1997 |
| 1573997 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Non-sprayed control plot (left row) in a fungicide evaluation trial on gummy stem blight of watermelon. September 1997 |
| 1573998 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Non-sprayed control plot (left row) in a fungicide evaluation trial on gummy stem blight of watermelon. September 1997 |
| 1573937 |
Phoma blights |
Phoma spp. |
Close-up of diseased fruit. September 1997 |
| 1573859 |
early blight |
Alternaria solani |
Close up of blighted stems. September 1997 |
| 1573856 |
early blight |
Alternaria solani |
Close up of diseased leaves. September 1997 |
| 1573857 |
early blight |
Alternaria solani |
Close up of blighted leaves. September 1997 |
| 1573858 |
early blight |
Alternaria solani |
Close up of blighted leaves. September 1997 |
| 1573853 |
early blight |
Alternaria solani |
Several diseased leaves. September 1997 |
| 1573854 |
early blight |
Alternaria solani |
Close up of diseased leaf. September 1997 |
| 1573855 |
early blight |
Alternaria solani |
Close up of diseased leaves. September 1997 |
| 1573851 |
early blight |
Alternaria solani |
Close up of leaf with initial symptoms. September 1997 |
| 1573852 |
early blight |
Alternaria solani |
Close up of blighted leaf. September 1997 |
| 1573849 |
early blight |
Alternaria solani |
diseased plant. September 1997 |
| 1573850 |
early blight |
Alternaria solani |
Diseased plants and fruit. September 1997 |
| 1573424 |
brown spot |
Alternaria alternata |
Secondary organisms will colonize injured tissue following chilling injury. July 1997 |
| 1573423 |
brown spot |
Alternaria alternata |
Secondary organisms will colonize injured tissue following chilling injury. July 1997 |
| 1573314 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Leaf spotting caused by gummy stem blight. Note the small black dots (pycnidia of the pathogen) in the largest tan lesion. June 1997 |
| 1573312 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Micrograph of conidia oozing from a pycnidium of Phoma cucurbitacearum (anamorph of Didymella bryoniae). June 1997 |
| 1573311 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Micrograph of conidia oozing from a pycnidium of Phoma cucurbitacearum (anamorph of Didymella bryoniae). June 1997 |
| 5492239 |
apple scab |
Venturia inaequalis |
scab on fruit |
| 5389428 |
spring dead spot |
Ophiosphaerella korrae |
A Kentucky bluegrass (Poa pratensis) lawn showing symptoms of necrotic ring spot infection caused by Leptosphaeria korrae. |
| 5487886 |
Phoma blights |
Phoma spp. |
dieback |
| 1572870 |
black spot |
Alternaria brassicicola |
Leaf spot on cabbage caused by Alternaria brassicicola or A. brassicae. April 1997? |
| 1572869 |
black spot |
Alternaria brassicicola |
Leaf spot on cabbage caused by Alternaria brassicicola or A. brassicae. April 1997? |
| 1572868 |
black spot |
Alternaria brassicicola |
Chinese cabbage leaf showing many lesions caused by Alternaria brassicicola. April 1997? |
| 1572867 |
black spot |
Alternaria brassicicola |
Chinese cabbage leaf showing many lesions caused by Alternaria brassicicola. April 1997? |
| 1572866 |
black spot |
Alternaria brassicicola |
Chinese cabbage leaf showing many young lesions caused by Alternaria brassicicola. April 1997? |
| 1572865 |
black spot |
Alternaria brassicicola |
Chinese cabbage plants showing extensive leaf spotting caused by Alternaria brassicicola. April 1997? |
| 1572864 |
black spot |
Alternaria brassicicola |
Chinese cabbage leaf showing many lesions caused by Alternaria brassicicola. April 1997? |
| 1572863 |
black spot |
Alternaria brassicicola |
Chinese cabbage leaf showing many lesions caused by Alternaria brassicicola. April 1997? |
| 1572861 |
black spot |
Alternaria brassicicola |
Chinese cabbage leaf showing many lesions caused by Alternaria brassicicola. April 1997? |
| 1572862 |
black spot |
Alternaria brassicicola |
Chinese cabbage leaf showing many lesions caused by Alternaria brassicicola. April 1997? |
| 1572860 |
black spot |
Alternaria brassicicola |
Chinese cabbage leaf showing many lesions caused by Alternaria brassicicola. April 1997 |
| 1572859 |
black spot |
Alternaria brassicicola |
Leaf spot on cabbage caused by Alternaria brassicicola or A. brassicae. April 1997 |
| 1524017 |
Southern corn leaf blight and stalk rot |
Bipolaris maydis |
|
| 5356882 |
black knot |
Apiosporina morbosa |
Plum tree showing signs of infection with black knot disease |
| 5356883 |
black knot |
Apiosporina morbosa |
Section of a plum branch showing signs of infection with black knot disease |
| 5481759 |
Alternaria leaf blight |
Alternaria cucumerina |
|
| 5481751 |
Alternaria leaf blight |
Alternaria cucumerina |
|
| 5481752 |
Alternaria leaf blight |
Alternaria cucumerina |
|
| 5481753 |
Alternaria leaf blight |
Alternaria cucumerina |
|
| 5481754 |
Alternaria leaf blight |
Alternaria cucumerina |
|
| 5481755 |
Alternaria leaf blight |
Alternaria cucumerina |
|
| 5481756 |
Alternaria leaf blight |
Alternaria cucumerina |
|
| 5481757 |
Alternaria leaf blight |
Alternaria cucumerina |
|
| 5481758 |
Alternaria leaf blight |
Alternaria cucumerina |
|
| 5454396 |
Bipolaris fungus |
Bipolaris spicifera |
Three day old culture of a Bipolaris sp. growing on potato dextrose agar (PDA) |
| 5454400 |
Bipolaris fungus |
Bipolaris spicifera |
The reverse of a three day old culture of a Bipolaris sp. growing on potato dextrose agar (PDA) |
| 5454397 |
Bipolaris fungus |
Bipolaris spicifera |
Three day old culture of a Biploaris sp. growing on quarter-strength (1/4) potato dextrose agar (PDA) |
| 5454398 |
Bipolaris fungus |
Bipolaris spicifera |
Three day old culture of a Bipolaris sp. growing on quarter-strength (1/4) potato dextrose agar (PDA) |
| 5454399 |
Bipolaris fungus |
Bipolaris spicifera |
The reverse of a three day old culture of a Bipolaris sp. growing on quarter-strength (1/4) potato dextrose agar (PDA) |
| 5480099 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480100 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480101 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480102 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480066 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480067 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480068 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480070 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480071 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480073 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480076 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480077 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480078 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480079 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480080 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480081 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480082 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480083 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480084 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480085 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480086 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480087 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480088 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480089 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480090 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480091 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480092 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480093 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480094 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480095 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5479994 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5479995 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5479996 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5479997 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5479998 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5479999 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480001 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5480002 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 5486959 |
Alternaria blight |
Alternaria zinniae |
|
| 5485073 |
Rostratum leaf spot |
Exserohilum rostratum |
Symptoms on bermudagrass from a home lawn, caused by the fungus Exserohilum rostratum. |
| 5485072 |
Rostratum leaf spot |
Exserohilum rostratum |
Note the protuberant hilum and the darker colored first and last septa. |
| 5484653 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Symptoms |
| 5484652 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Conidia. |
| 5484651 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Conidia. |
| 5484650 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Conidia. |
| 5484649 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Leaf spot with conidia evident. |
| 5484648 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Leaf spot with conidia evident. |
| 5484647 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Leaf spot with conidia evident. |
| 5484646 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Leaf spot. |
| 5485248 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Infected leaf |
| 5485247 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Conidia. |
| 5485246 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Conidium. |
| 5485245 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Conidium. |
| 5458673 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Alternaria leaf spot. |
| 5458674 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Alternaria leaf spot. |
| 5445953 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Produces conidia in chains |
| 5476497 |
Alternaria leaf spot |
Alternaria padwickii |
Symptoms - leaf spots |
| 5476498 |
Alternaria leaf spot |
Alternaria padwickii |
Symptoms - Leaf spots. Section cut out for microscopic examination. |
| 5476496 |
Alternaria leaf spot |
Alternaria padwickii |
Conidia on tape mount |
| 5476494 |
Alternaria leaf spot |
Alternaria padwickii |
Conidiophores |
| 5476495 |
Alternaria leaf spot |
Alternaria padwickii |
Conidiophores on tape mount |
| 5476493 |
Alternaria leaf spot |
Alternaria padwickii |
Conidiophores |
| 5476492 |
Alternaria leaf spot |
Alternaria padwickii |
Conidia on leaf spot viewed with dissecting scope |
| 5476491 |
Alternaria leaf spot |
Alternaria padwickii |
Leaf spot with fungus evident |
| 5476433 |
Phoma blight |
Phoma exigua var. exigua |
Symptoms |
| 5411487 |
Phoma blight |
Phoma destructiva |
|
| 5411470 |
Alternaria leaf blight |
Alternaria cucumerina |
|
| 5476021 |
powdery mildew hyperparasite |
Ampelomyces quisqualis |
The brown structures with spores oozing from them are the spore producing structures (pycnidia) of Ampelomyces quisqualis, a naturally-occurring fungal hyperparasite of cucurbit powdery mildew. A few, large, clear spores (conidia) of the cucurbit powdery mildew fungus can be seen. |
| 5476017 |
powdery mildew hyperparasite |
Ampelomyces quisqualis |
Bottom surface of single pumpkin leaf infected with cucurbit powdery mildew and the naturally-occurring fungal hyperparasite, Ampelomyces quisqualis. The white mycelium and large, clear spores are of the powdery mildew fungus. The brown structures are the spore producing structures (pycnidia) of Ampelomyces quisqualis. |
| 5476018 |
powdery mildew hyperparasite |
Ampelomyces quisqualis |
Close-up of the bottom surface of single pumpkin leaf infected with cucurbit powdery mildew and the naturally-occurring fungal hyperparasite, Ampelomyces quisqualis. The white mycelium is the powdery mildew fungus. The brown structures are the spore producing structures (pycnidia) of Ampelomyces quisqualis. |
| 5476016 |
powdery mildew hyperparasite |
Ampelomyces quisqualis |
Bottom surface of single pumpkin leaf infected with cucurbit powdery mildew and the naturally-occurring fungal hyperparasite, Ampelomyces quisqualis. The white mycelium is the powdery mildew fungus. The brown structures are the spore producing structures (pycnidia) of Ampelomyces quisqualis. |
| 5476019 |
powdery mildew hyperparasite |
Ampelomyces quisqualis |
Cucurbit powdery mildew and the naturally-occurring fungal hyperparasite, Ampelomyces quisqualis. The white mycelium and clear spores are of the powdery mildew fungus. The brown structures are the spore producing structures (pycnidia) of Ampelomyces quisqualis. |
| 5476020 |
powdery mildew hyperparasite |
Ampelomyces quisqualis |
Cucurbit powdery mildew and the naturally-occurring fungal hyperparasite, Ampelomyces quisqualis. The white mycelium and clear spores are of the powdery mildew fungus. The brown structures are the spore producing structures (pycnidia) of Ampelomyces quisqualis. |
| 5476015 |
powdery mildew hyperparasite |
Ampelomyces quisqualis |
Bottom surface of single pumpkin leaf infected with cucurbit powdery mildew and the naturally-occurring fungal hyperparasite, Ampelomyces quisqualis. |
| 5476022 |
powdery mildew hyperparasite |
Ampelomyces quisqualis |
The brown structures with spores oozing from them are the spore producing structures (pycnidia) of Ampelomyces quisqualis, a naturally-occurring fungal hyperparasite of cucurbit powdery mildew. |
| 5454395 |
Bipolaris fungus |
Bipolaris spicifera |
Three day old culture of a Bipolaris sp. growing on potato dextrose agar (PDA) |
| 5473741 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
Hyphae and conidia
in vitro: harvested from potato dextrose agar |
| 5473742 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
hyphae and conidia
in vitro: harvested from potato dextrose agar |
| 5473743 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
Hyphae, conidia and sporodochia.
in vitro: harvested from potato dextrose agar |
| 5473745 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
Hyphae, conidia and sporodochia
In vitro: harvested from potato dextrose agar |
| 5473762 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
Gross culture morphology; one-month post plating
In vitro |
| 5473763 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
Culture margin; one-month post plating
In vitro |
| 5473764 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
Gross culture morphology; one-month post plating
In vitro |
| 5473744 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
conidia
In vitro |
| 5473913 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
Culture margin; one-month post plating |
| 5473914 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
Selected view of gross culture-margin morphology; one-month post plating
In vitro |
| 5473915 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
Gross morphology of culture surface; one-month post plating
In vitro |
| 5472857 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Gummy stem blight lesions on watermelon leaf. |
| 5472858 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Gummy stem blight lesions on watermelon crown leaves and crown. |
| 5472855 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Gummy stem blight lesion at the base of a watermelon plant. |
| 5472856 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Gummy stem blight lesions on watermelon crown and vines. |
| 1568038 |
early blight |
Alternaria solani |
|
| 5458312 |
leaf blotch |
Peyronellaea curtisii |
Whole mount of pycnidia in leaf tissue showing ostioles. |
| 5458770 |
Phoma blight |
Phoma clematidina |
Pycnidia in sectioned leaf tissue |
| 5458313 |
leaf blotch |
Peyronellaea curtisii |
Pycnidium cross section |
| 5458314 |
leaf blotch |
Peyronellaea curtisii |
Infected leaf tissue |
| 5458315 |
leaf blotch |
Peyronellaea curtisii |
Infected leaf tissue |
| 5458316 |
leaf blotch |
Peyronellaea curtisii |
Infected bulb scales at base of plant |
| 5458317 |
leaf blotch |
Peyronellaea curtisii |
Infected leaf tissue |
| 5458318 |
leaf blotch |
Peyronellaea curtisii |
Infected leaf showing red blotch symptom |
| 5458319 |
leaf blotch |
Peyronellaea curtisii |
Infected leaf showing red blotch symptom |
| 5458308 |
leaf blotch |
Peyronellaea curtisii |
Conidia. |
| 5458309 |
leaf blotch |
Peyronellaea curtisii |
Cross section of pycnidia in leaf tissue. |
| 5458310 |
leaf blotch |
Peyronellaea curtisii |
Cross section of pycnidium. |
| 5458311 |
leaf blotch |
Peyronellaea curtisii |
Cross section of pycnidium showing pycnidial wall. |
| 5458303 |
leaf blotch |
Peyronellaea curtisii |
Infection at the base of the flower scape. |
| 5458320 |
leaf blotch |
Peyronellaea curtisii |
Infected leaf showing red blotch symptom |
| 5458321 |
leaf blotch |
Peyronellaea curtisii |
Infected leaf showing red blotch symptom |
| 1570891 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Alternaria as secondary invader of kale stem tissue. Primary cause not known. November 1994 |
| 1570890 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Alternaria as a secondary invader of kale stem tissue. Primary cause not known. November 1994 |
| 5461538 |
black knot |
Apiosporina morbosa |
|
| 5461539 |
black knot |
Apiosporina morbosa |
|
| 5461540 |
black knot |
Apiosporina morbosa |
|
| 5461541 |
black knot |
Apiosporina morbosa |
|
| 5461542 |
black knot |
Apiosporina morbosa |
|
| 5461543 |
black knot |
Apiosporina morbosa |
|
| 5458854 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
infected needle with pseudothecia emerging |
| 5458853 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
infected needle with pseudothecia emerging |
| 5458852 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Infected foliage |
| 5458851 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Pseudothecia emerging from needle |
| 5458850 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Pseudothecia emerging from needle |
| 5458848 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Infected needle with pseudothecia emerging |
| 5458849 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Pseudothecia emerging from needle |
| 5458847 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Pseudothecia emerging from needle |
| 5458846 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Pseudothecia emerging from needle |
| 5458844 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Pseudothecia emerging from needle |
| 5458845 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Pseudothecia emerging from needle |
| 5458775 |
Phoma blight |
Phoma clematidina |
Leaf spots on diseased leaves |
| 5458773 |
Phoma blight |
Phoma clematidina |
Conidia |
| 5458774 |
Phoma blight |
Phoma clematidina |
Cross-section of pycnidia in leaf tissue |
| 5458772 |
Phoma blight |
Phoma clematidina |
Conidia |
| 5458771 |
Phoma blight |
Phoma clematidina |
Conidia |
| 5458769 |
Phoma blight |
Phoma clematidina |
Pycnidial wall in cross-section |
| 5458768 |
Phoma blight |
Phoma clematidina |
Cross-section of pycnidium |
| 5458767 |
Phoma blight |
Phoma clematidina |
Pycnidia evident in leaf spot. |
| 5457969 |
maple cankers |
Stegonsporium spp. |
Dark fruiting bodies emerging from blighted maple twig |
| 5457972 |
maple cankers |
Stegonsporium spp. |
dark spores |
| 5457973 |
maple cankers |
Stegonsporium spp. |
fruiting body with mature spores |
| 5458307 |
leaf blotch |
Peyronellaea curtisii |
Spores extruding from pycnidia in leaf tissue |
| 5458306 |
leaf blotch |
Peyronellaea curtisii |
Abundant pycnidia in leaf tissue. |
| 5458305 |
leaf blotch |
Peyronellaea curtisii |
Pycnidia in tissues with ostioles obvious. |
| 5458304 |
leaf blotch |
Peyronellaea curtisii |
Spores extruding from pycnidia in leaf tissue. |
| 5458372 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
Ascospores. |
| 5458375 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
Leaf spots on leaves. |
| 5458370 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
Ascocarp cross-section. |
| 5458368 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
Leaf spots on leaf. |
| 5458369 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
Leaf spots on leaf |
| 5458371 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
Leaf spot with emergent ascocarps. |
| 5458373 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
Ascospores |
| 5458374 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
Ascospores in ascus |
| 5457967 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Symptoms developing on fruit post harvest. |
| 5454327 |
Leptosphaerulina leaf blight |
Leptosphaerulina crassiasca |
Ascospores of Leptosphaerulina crassiasca |
| 5454328 |
Leptosphaerulina leaf blight |
Leptosphaerulina crassiasca |
Ascospores of Leptosphaerulina crassiasca |
| 5454329 |
Leptosphaerulina leaf blight |
Leptosphaerulina crassiasca |
Ascospores of Leptosphaerulina crassiasca |
| 5454326 |
Leptosphaerulina leaf blight |
Leptosphaerulina crassiasca |
|
| 5449581 |
Alternaria black molds / stem cankers |
Alternaria spp. |
conidia |
| 5449582 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 1571408 |
pink root of onion |
Phoma terrestris |
Symptoms of pink root (Phoma terrestris). June 1995 |
| 1571409 |
pink root of onion |
Phoma terrestris |
Symptoms of pink root (Phoma terrestris). June 1995 |
| 5407842 |
apple scab |
Venturia inaequalis |
Apple scab symptoms and signs evident on a leaf and young developing fruit |
| 5444374 |
black knot |
Apiosporina morbosa |
Basketball sized gall on trunk |
| 5444375 |
black knot |
Apiosporina morbosa |
Basketball sized gall on trunk |
| 5444376 |
black knot |
Apiosporina morbosa |
Basketball sized gall on trunk |
| 5444377 |
black knot |
Apiosporina morbosa |
Close up on trunk gall |
| 5444378 |
black knot |
Apiosporina morbosa |
Large basketball sized gall on trunk |
| 5444379 |
black knot |
Apiosporina morbosa |
Large basketball sized gall on trunk |
| 5444380 |
black knot |
Apiosporina morbosa |
Large basketball sized gall on trunk |
| 5338017 |
leaf spot |
Pyrenophora phaeocomes |
microscopic view of Pyrenophora phaeocomes ascus with ascospores |
| 1236042 |
black knot |
Apiosporina morbosa |
|
| 0886026 |
black knot |
Apiosporina morbosa |
Infected cherry |
| 0176071 |
mal secco |
Phoma tracheiphila |
Lemon tree (Citrus limon) infected by mal secco. |
| 1406074 |
brown spot |
Alternaria alternata |
|
| 1406075 |
brown spot |
Alternaria alternata |
needle symptoms |
| 1399112 |
shepherd's crook leaf and shoot blight |
Venturia populina |
|
| 1361158 |
black knot |
Apiosporina morbosa |
|
| 0454020 |
ray (flower) blight of chrysanthemum |
Didymella ligulicola |
Chrysanthemum leaf with lesion caused by Didymella ligulicola. |
| 4213006 |
willow scab |
Venturia saliciperda |
tip dieback |
| 1234093 |
gummy stem blight (vine decline) |
Didymella bryoniae |
to leaf |
| 1234081 |
early blight |
Alternaria solani |
|
| 5440136 |
fungus |
Ulocladium spp. |
12/12 light/dark at 27 C
Top of culture on Day 6 |
| 5440137 |
fungus |
Ulocladium spp. |
12/12 light/dark at 27 C
Bottom of culture on Day 8 |
| 5440138 |
fungus |
Ulocladium spp. |
12/12 light/dark at 27 C
Top of culture on Day 8 |
| 5440133 |
fungus |
Ulocladium spp. |
12/12 light/dark at 27 C
Bottom of culture on Day 4 |
| 5440134 |
fungus |
Ulocladium spp. |
12/12 light/dark at 27 C
Top of culture on Day 4 |
| 5440135 |
fungus |
Ulocladium spp. |
12/12 light/dark at 27 C
Bottom of culture on Day 6 |
| 5440132 |
fungus |
Ulocladium spp. |
12/12 light/dark at 27 C
Top of culture on Day 2 |
| 1436042 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 1436088 |
black knot |
Apiosporina morbosa |
|
| 5426743 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Leaf symptoms: dark brown to black areas of tissue. |
| 1235041 |
peach scab |
Venturia carpophila |
|
| 1235144 |
apple scab |
Venturia inaequalis |
|
| 2251045 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
symptomatic trees |
| 2251044 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
infected foliage on left and healthy foliage on right |
| 5437627 |
tan spot |
Pyrenophora tritici-repentis |
|
| 5437628 |
tan spot |
Pyrenophora tritici-repentis |
|
| 5437629 |
tan spot |
Pyrenophora tritici-repentis |
|
| 5437630 |
tan spot |
Pyrenophora tritici-repentis |
|
| 5437631 |
tan spot |
Pyrenophora tritici-repentis |
|
| 1436071 |
apple scab |
Venturia inaequalis |
|
| 1234124 |
early blight |
Alternaria solani |
to leaf |
| 1235139 |
apple scab |
Venturia inaequalis |
|
| 4449064 |
Phoma blights |
Phoma spp. |
|
| 1415102 |
Herpotrichia fungi |
Herpotrichia spp. |
July 23, 2002 |
| 1415114 |
Herpotrichia fungi |
Herpotrichia spp. |
July 23, 2002 |
| 1467408 |
brown felt blight |
Herpotrichia juniperi |
|
| 1436127 |
Alternaria black molds / stem cankers |
Alternaria spp. |
invades leaves damaged by downy mildew |
| 1436121 |
Alternaria leaf blight |
Alternaria cucumerina |
|
| 1442053 |
brown felt blight |
Herpotrichia juniperi |
|
| 1440024 |
brown spot |
Alternaria alternata |
Symptoms of the brown spot fungus first appear on the lower leaves. Spots are brown with sharply defined margins and may be surrounded by yellow halos. The primary distinguishing characteristics of brown spot are the dark concentric rings within spots that give it a target-like appearance. With magnification, reproductive structures of the casual agent are seen as tufts of black fungal spores (conidia). Under severe conditions, spots are numerous, may coalesce, and give the leaf a ragged appearance as the infected tissue falls out. |
| 1234103 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 1402025 |
brown spot |
Alternaria alternata |
This fungal disease appears first on the older leaves as circular, brown spots (1/4 to 1 1/4 inches in diameter) with sharply defined margins. Concentric circles (rings) are often noticeable within the spots. As the leaves approach maturity, a yellowish "halo" of varying width often forms around the lesion. Lesions may merge, forming large areas of dead tissue. During humid weather, sporulation of the fungus may be abundant, giving the lesions a black, dusty appearance. Brown spot is most severe as the plant approaches maturity, and the disease progresses from the lower to the upper leaves. Disease severity depends much on the weather, the overall health of the plant, varietal tolerance, and harvest rate. |
| 4213004 |
shepherd's crook leaf and shoot blight |
Venturia tremulae |
|
| 5076090 |
Alternaria leaf blight |
Alternaria cucumerina |
Brown to black spots with concentric rings observed within the spot. A yellow halo often occurs around a spot or group of spots. |
| 4212019 |
Venturia leaf scabs and blights |
Venturia spp. |
gall |
| 1436081 |
peach scab |
Venturia carpophila |
on fruit |
| 1436046 |
brown spot |
Alternaria alternata |
Leaf spots are brown in color, circular and enlarge to about the size of a nickel. Concentric rings can be seen within the spots and these may coalese forming irregular areas on the foliage. Disease severity is positively correlated with cloudy, wet weather. The disease occurs primarily on mature leaves often beginning on the lower leaves and progressing to other leaves higher up on the stalk. |
| 1436074 |
apple scab |
Venturia inaequalis |
on young fruit and leaf |
| 1415218 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Leaf necrosis on seedling. Sept. 21, 2003 |
| 1436116 |
gummy stem blight (vine decline) |
Didymella bryoniae |
to fruit |
| 1234080 |
early blight |
Alternaria solani |
|
| 5435608 |
Japanese pear scab |
Venturia nashicola |
|
| 1436082 |
peach scab |
Venturia carpophila |
on twig |
| 1406195 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
|
| 1234192 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 1238014 |
black knot |
Apiosporina morbosa |
|
| 1234110 |
early blight |
Alternaria solani |
to stem |
| 1233052 |
early blight |
Alternaria solani |
|
| 1436117 |
gummy stem blight (vine decline) |
Didymella bryoniae |
to leaf |
| 1234123 |
early blight |
Alternaria solani |
to stem |
| 1436019 |
Southern corn leaf blight and stalk rot |
Bipolaris maydis |
|
| 1236149 |
peach scab |
Venturia carpophila |
|
| 5427709 |
Alternaria blight |
Alternaria zinniae |
Small reddish brown spots with grayish centers typical of Alternaria leaf blight on zinnia |
| 5427735 |
Pyracantha scab |
Spilocaea pyracanthae |
Symptoms and signs of scab on pyracantha fruit
|
| 1235106 |
Southern corn leaf blight and stalk rot |
Bipolaris maydis |
|
| 1234176 |
apple scab |
Venturia inaequalis |
|
| 1440027 |
Phoma blight |
Phoma exigua var. exigua |
Spots are tan colored, with minute dark circular specks present on the surface of the spot. Brown spot and ragged leaf spot may be confused. The presence of distinct, circular, black fruiting bodies (pycnidia), which may be seen under magnification, distinguishes this disease from brown spot. The tissue in the spot may become papery-thin, tearing easily and giving the spot a ragged appearance. This disease is usually of minor importance, showing up late in the season on the lower leaves. |
| 5418702 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
|
| 1440025 |
brown spot |
Alternaria alternata |
Symptoms of the brown spot fungus first appear on the lower leaves. Spots are brown with sharply defined margins and may be surrounded by yellow halos. The primary distinguishing characteristics of brown spot are the dark concentric rings within spots that give it a target-like appearance. With magnification, reproductive structures of the casual agent are seen as tufts of black fungal spores (conidia). Under severe conditions, spots are numerous, may coalesce, and give the leaf a ragged appearance as the infected tissue falls out. |
| 5261034 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 1440026 |
Phoma blight |
Phoma exigua var. exigua |
Spots are tan colored, with minute dark circular specks present on the surface of the spot. Brown spot and ragged leaf spot may be confused. The presence of distinct, circular, black fruiting bodies (pycnidia), which may be seen under magnification, distinguishes this disease from brown spot. The tissue in the spot may become papery-thin, tearing easily and giving the spot a ragged appearance. This disease is usually of minor importance, showing up late in the season on the lower leaves. |
| 5418739 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Sooty mold symptoms on wheat head |
| 5418744 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Sooty mold symptoms on wheat head |
| 4544086 |
brown felt blight |
Herpotrichia juniperi |
|
| 5426742 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Black mold/stem canker of tomato |
| 5426745 |
Alternaria black molds / stem cankers |
Alternaria spp. |
bottom view of plate at two days |
| 5426746 |
Alternaria black molds / stem cankers |
Alternaria spp. |
top view of culture plate at two days |
| 5426747 |
Alternaria black molds / stem cankers |
Alternaria spp. |
The spores were obtained with a tape mount which was stained with Lactophenol Blue and viewed with a compound scope at 40x. The microscope picture was taken at 4 days (2x10x). |
| 5426748 |
Alternaria black molds / stem cankers |
Alternaria spp. |
bottom view of culture plate at 4 days |
| 5426749 |
Alternaria black molds / stem cankers |
Alternaria spp. |
top view of culture plate at 4 days |
| 5426750 |
Alternaria black molds / stem cankers |
Alternaria spp. |
bottom view at 6 days |
| 5426751 |
Alternaria black molds / stem cankers |
Alternaria spp. |
top view at 6 days |
| 1234186 |
Alternaria leaf blight |
Alternaria cucumerina |
close-up |
| 4544085 |
brown felt blight |
Herpotrichia juniperi |
|
| 5428816 |
Embellisia skin blotch and bulb canker of garlic |
Embellisia allii |
Conidia on conidiophores. |
| 5428817 |
Embellisia skin blotch and bulb canker of garlic |
Embellisia allii |
Conidia |
| 5428818 |
Embellisia skin blotch and bulb canker of garlic |
Embellisia allii |
Conidiophore with apical pore. |
| 5428819 |
Embellisia skin blotch and bulb canker of garlic |
Embellisia allii |
Conidial bloom on bulb sheath. |
| 5428820 |
Embellisia skin blotch and bulb canker of garlic |
Embellisia allii |
Conidial production under bulb sheath. |
| 5428821 |
Embellisia skin blotch and bulb canker of garlic |
Embellisia allii |
Conidia on conidiophores. |
| 5429762 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5429763 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5429764 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5429765 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 1406194 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
|
| 5411419 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
spot blotch |
| 5411435 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
Fungal condia |
| 5411420 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
spot blotch |
| 5411421 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
spot blotch |
| 5411347 |
Coniothyrium fungus |
Coniothyrium concentricum |
leaf spots |
| 5411348 |
Coniothyrium fungus |
Coniothyrium concentricum |
leaf spots |
| 0176078 |
leaf spot of maize |
Bipolaris zeicola |
Lesions caused by Cochliobolus carbonum on maize leaf. |
| 1436104 |
early blight |
Alternaria solani |
on leaf |
| 1436112 |
gummy stem blight (vine decline) |
Didymella bryoniae |
to leaf |
| 1402024 |
brown spot |
Alternaria alternata |
This fungal disease appears first on the older leaves as circular, brown spots (1/4 to 1 1/4 inches in diameter) with sharply defined margins. Concentric circles (rings) are often noticeable within the spots. As the leaves approach maturity, a yellowish "halo" of varying width often forms around the lesion. Lesions may merge, forming large areas of dead tissue. During humid weather, sporulation of the fungus may be abundant, giving the lesions a black, dusty appearance. Brown spot is most severe as the plant approaches maturity, and the disease progresses from the lower to the upper leaves. Disease severity depends much on the weather, the overall health of the plant, varietal tolerance, and harvest rate. |
| 2251064 |
shepherd's crook leaf and shoot blight |
Venturia populina |
|
| 1234191 |
gummy stem blight (vine decline) |
Didymella bryoniae |
|
| 1436113 |
gummy stem blight (vine decline) |
Didymella bryoniae |
to stem |
| 1371047 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Stand dieback in group of several trees. |
| 5384611 |
brown spot |
Alternaria alternata |
|
| 5384607 |
brown spot |
Alternaria alternata |
|
| 5384608 |
brown spot |
Alternaria alternata |
|
| 5384609 |
brown spot |
Alternaria alternata |
|
| 5384610 |
brown spot |
Alternaria alternata |
|
| 5426924 |
brown spot of rice |
Cochliobolus miyabeanus |
Round to elongated spots |
| 1371048 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Necrotic lesions on needles 2 years old and older; dieback from the tip of needle. Nemecká, Slovakia |
| 1415113 |
Herpotrichia fungi |
Herpotrichia spp. |
July 23, 2002 |
| 5411261 |
Embellisia skin blotch and bulb canker of garlic |
Embellisia allii |
|
| 5411262 |
Embellisia skin blotch and bulb canker of garlic |
Embellisia allii |
|
| 5411263 |
Embellisia skin blotch and bulb canker of garlic |
Embellisia allii |
|
| 5393421 |
Japanese pear scab |
Venturia nashicola |
Black colored conidia on vein of pear leaf |
| 5411339 |
black knot |
Apiosporina morbosa |
Black knot on branches of wild cherry tree |
| 5411332 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
Magnified view of dark fungal conidia and conidiophores on leaf blade |
| 1570299 |
brown spot |
Alternaria alternata |
Altenaria alternata (400X). December 1991 |
| 1570300 |
brown spot |
Alternaria alternata |
Chains of conidia of Alternaria alternata (100X). December 1991 |
| 5417120 |
Drechslera leaf spot |
Drechslera spp. |
foliar symptoms |
| 5417119 |
Drechslera leaf spot |
Drechslera spp. |
|
| 5417116 |
Drechslera leaf spot |
Drechslera spp. |
|
| 5417103 |
dead spot |
Ophiosphaerella agrostidis |
|
| 5417102 |
dead spot |
Ophiosphaerella agrostidis |
|
| 5417118 |
Drechslera leaf spot |
Drechslera spp. |
|
| 5403533 |
black spot |
Alternaria brassicicola |
Three days after artifical inoculation |
| 5417115 |
Drechslera leaf spot |
Drechslera spp. |
|
| 5408860 |
apple scab |
Venturia inaequalis |
|
| 5403519 |
black spot |
Alternaria brassicicola |
Concentric balck spots on leaf |
| 5408838 |
purple blotch |
Alternaria porri |
Black to purple spot on stem of Allium |
| 5403529 |
brown spot of rice |
Cochliobolus miyabeanus |
Round to elongated spots with yellow colored edges on rice leaves |
| 5405265 |
leaf blight |
Drechslera gigantea |
Overall view of Reed canarygrass with tan blotches from Zonate leaf spot. |
| 5405266 |
leaf blight |
Drechslera gigantea |
Circular to oval tan-colored spots which coalesce to form large blighted areas. |
| 5405267 |
leaf blight |
Drechslera gigantea |
Circular to oval tan-colored spots which coalesce to form large blighted areas. |
| 5405268 |
leaf blight |
Drechslera gigantea |
Close-up of one area of blighted tissue. |
| 5405269 |
leaf blight |
Drechslera gigantea |
Close-up of one spot showing short, dark condiophores and longer, lighter-colored spores. |
| 5405270 |
leaf blight |
Drechslera gigantea |
Close-up of one spot showing short, dark condiophores and longer, lighter-colored spores. |
| 5405271 |
leaf blight |
Drechslera gigantea |
Conidiophores and stained spores of Drechslera gigantea on leaf surface. |
| 5405272 |
leaf blight |
Drechslera gigantea |
Measurement of single stained spore of Drechslera gigantea on leaf surface. |
| 5405273 |
leaf blight |
Drechslera gigantea |
Single stained spore of Drechslera gigantea on leaf surface. |
| 5405274 |
leaf blight |
Drechslera gigantea |
Single stained spore of Drechslera gigantea on leaf surface. |
| 5405275 |
leaf blight |
Drechslera gigantea |
Measurement of single stained spore of Drechslera gigantea on leaf surface. |
| 5408099 |
Embellisia skin blotch and bulb canker of garlic |
Embellisia allii |
Magnification of 200X |
| 5408100 |
Embellisia skin blotch and bulb canker of garlic |
Embellisia allii |
Magnification of 400X |
| 5408095 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5410673 |
brown spot of rice |
Cochliobolus miyabeanus |
Rice leaf showig severe brown spot leaf symptoms. |
| 5410611 |
Alternaria leaf spot |
Alternaria padwickii |
Rice leaves showing symptoms of Alternaria leaf spot. |
| 5410612 |
Alternaria leaf spot |
Alternaria padwickii |
Rice leaves showing symtpoms of Alternaria leaf spot. |
| 5410619 |
Cochliobolus leaf spot / black kernel |
Cochliobolus lunatus |
Infected rice grain showing signs and symptoms of black kernal. |
| 1538019 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 1538017 |
northern corn leaf blight |
Exserohilum turcicum |
Blight across the leaf axil areas |
| 1538018 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 1538014 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 1538016 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 1538015 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 1538012 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 1538013 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 1538010 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 1563363 |
foot rot |
Plenodomus destruens |
(Sep73) |
| 1563364 |
foot rot |
Plenodomus destruens |
(Sep73) |
| 1563365 |
foot rot |
Plenodomus destruens |
(Aug73) |
| 1563366 |
foot rot |
Plenodomus destruens |
(Sep78) |
| 1563367 |
foot rot |
Plenodomus destruens |
(Sep78) |
| 1563368 |
foot rot |
Plenodomus destruens |
(Sep76) |
| 5402952 |
Alternaria leaf blight |
Alternaria cucumerina |
Control of Alternaria cucumerinum with maneb or zineb. |
| 5402987 |
apple scab |
Venturia inaequalis |
|
| 5402985 |
apple scab |
Venturia inaequalis |
|
| 5402986 |
apple scab |
Venturia inaequalis |
|
| 5402963 |
apple scab |
Venturia inaequalis |
|
| 5402964 |
apple scab |
Venturia inaequalis |
|
| 5402957 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5402919 |
Alternaria leaf blight |
Alternaria cucumerina |
Also Muskmelon cracking |
| 5402984 |
brown spot |
Alternaria alternata |
|
| 5402983 |
brown spot |
Alternaria alternata |
On Queen of Colorado variety |
| 5402982 |
brown spot |
Alternaria alternata |
On Queen of Colorado variety. |
| 5402979 |
brown spot |
Alternaria alternata |
|
| 5402958 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5393380 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
|
| 5394463 |
Cochliobolus leaf spot |
Bipolaris sorokiniana |
Common root rot of wheat |
| 5394446 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Alternaria on lower leaves of camelina |
| 5394447 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Alternaria on lower leaves of camelina |
| 5394464 |
tan spot |
Pyrenophora tritici-repentis |
|
| 5393116 |
spring dead spot |
Ophiosphaerella korrae |
A Kentucky bluegrass (Poa pratensis) lawn showing symptoms of necrotic ring spot infection caused by Leptosphaeria korrae. |
| 5393117 |
spring dead spot |
Ophiosphaerella korrae |
A Kentucky bluegrass (Poa pratensis) lawn showing symptoms of necrotic ring spot infection caused by Leptosphaeria korrae. |
| 5393079 |
spring dead spot |
Ophiosphaerella korrae |
A Kentucky bluegrass (Poa pratensis) lawn showing symptoms of necrotic ring spot infection caused by Leptosphaeria korrae. |
| 5393077 |
spring dead spot |
Ophiosphaerella korrae |
A Kentucky bluegrass (Poa pratensis) lawn showing symptoms of necrotic ring spot infection caused by Leptosphaeria korrae. |
| 5393078 |
spring dead spot |
Ophiosphaerella korrae |
A Kentucky bluegrass (Poa pratensis) lawn showing symptoms of necrotic ring spot infection caused by Leptosphaeria korrae. |
| 5393075 |
spring dead spot |
Ophiosphaerella korrae |
A Kentucky bluegrass (Poa pratensis) lawn showing symptoms of necrotic ring spot infection caused by Leptosphaeria korrae. |
| 5393076 |
spring dead spot |
Ophiosphaerella korrae |
A Kentucky bluegrass (Poa pratensis) lawn showing symptoms of necrotic ring spot infection caused by Leptosphaeria korrae. |
| 5393074 |
spring dead spot |
Ophiosphaerella korrae |
A Kentucky bluegrass (Poa pratensis) lawn showing symptoms of necrotic ring spot infection caused by Leptosphaeria korrae. |
| 5389426 |
spring dead spot |
Ophiosphaerella korrae |
A Kentucky bluegrass (Poa pratensis) lawn showing symptoms of necrotic ring spot infection caused by Leptosphaeria korrae. |
| 2178086 |
Leptosphaeria leaf blight |
Leptosphaeria spp. |
|
| 2178100 |
Leptosphaeria leaf blight |
Leptosphaeria spp. |
|
| 2179005 |
Leptosphaeria leaf blight |
Leptosphaeria spp. |
|
| 2178038 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 2178054 |
apple scab |
Venturia inaequalis |
|
| 2178022 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 2178023 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 2178024 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 2178025 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 2178033 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 2178034 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 2178037 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 2178021 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 2177099 |
Phoma blights |
Phoma spp. |
|
| 2177094 |
Lewia fungi |
Lewia spp. |
|
| 2177095 |
Lewia fungi |
Lewia spp. |
|
| 2177051 |
Phoma blights |
Phoma spp. |
|
| 2177049 |
Phoma blights |
Phoma spp. |
|
| 2177043 |
Drechslera leaf spot |
Drechslera spp. |
|
| 2177044 |
Drechslera leaf spot |
Drechslera spp. |
|
| 2177046 |
Drechslera leaf spot |
Drechslera spp. |
|
| 2177047 |
Drechslera leaf spot |
Drechslera spp. |
|
| 2177048 |
Drechslera leaf spot |
Drechslera spp. |
|
| 2177042 |
Drechslera leaf spot |
Drechslera spp. |
|
| 2177045 |
Drechslera leaf spot |
Drechslera spp. |
|
| 2177038 |
Drechslera leaf spot |
Drechslera spp. |
|
| 2177040 |
Drechslera leaf spot |
Drechslera spp. |
|
| 2177032 |
Phoma blights |
Phoma spp. |
|
| 2177033 |
Phoma blights |
Phoma spp. |
|
| 2177030 |
Phoma blights |
Phoma spp. |
|
| 2177031 |
Phoma blights |
Phoma spp. |
|
| 2177026 |
Phoma blights |
Phoma spp. |
|
| 2177027 |
Phoma blights |
Phoma spp. |
|
| 2177028 |
Phoma blights |
Phoma spp. |
|
| 2177015 |
Drechslera leaf spot |
Drechslera spp. |
|
| 2177017 |
Drechslera leaf spot |
Drechslera spp. |
|
| 2177018 |
Drechslera leaf spot |
Drechslera spp. |
|
| 2174031 |
Helminthosporium leaf blotch |
Drechslera avenacea |
|
| 2170093 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2170094 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2170095 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2170096 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2170097 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2170098 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2174023 |
apple scab |
Venturia inaequalis |
conidia on the subcuticular mycelium |
| 2174024 |
apple scab |
Venturia inaequalis |
conidia |
| 2174017 |
apple scab |
Venturia inaequalis |
|
| 2174018 |
apple scab |
Venturia inaequalis |
|
| 2174019 |
apple scab |
Venturia inaequalis |
|
| 2174020 |
apple scab |
Venturia inaequalis |
|
| 2174021 |
apple scab |
Venturia inaequalis |
lesion caused by subcuticular mycelium; conidia released |
| 2174022 |
apple scab |
Venturia inaequalis |
lesion formed by subcuticular mycelium; conidia released |
| 2173055 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 2173060 |
Alternaria black molds / stem cankers |
Alternaria spp. |
with secondary infection of Scopulariopsis sp. |
| 2173050 |
Alternaria black molds / stem cankers |
Alternaria spp. |
with secondary infection of Scopulariopsis sp. |
| 2173051 |
Alternaria black molds / stem cankers |
Alternaria spp. |
with secondary infection of Scopulariopsis sp. |
| 2173053 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 2173034 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2173035 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2173025 |
Leptosphaeria leaf blight |
Leptosphaeria dracaenae |
|
| 2173024 |
Leptosphaeria leaf blight |
Leptosphaeria dracaenae |
|
| 2173019 |
Leptosphaeria leaf blight |
Leptosphaeria dracaenae |
|
| 2173021 |
Leptosphaeria leaf blight |
Leptosphaeria dracaenae |
|
| 2173022 |
Leptosphaeria leaf blight |
Leptosphaeria dracaenae |
|
| 2173023 |
Leptosphaeria leaf blight |
Leptosphaeria dracaenae |
|
| 2173018 |
Leptosphaeria leaf blight |
Leptosphaeria dracaenae |
|
| 2173013 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2173007 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2173008 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2173003 |
Leptosphaeria leaf blight |
Leptosphaeria dracaenae |
|
| 2172100 |
Leptosphaeria leaf blight |
Leptosphaeria dracaenae |
|
| 2173001 |
Leptosphaeria leaf blight |
Leptosphaeria dracaenae |
|
| 2173002 |
Leptosphaeria leaf blight |
Leptosphaeria dracaenae |
|
| 2172099 |
Leptosphaeria leaf blight |
Leptosphaeria dracaenae |
|
| 2172096 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2172097 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2172093 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2172094 |
Ophiosphaerella fungi |
Ophiosphaerella spp. |
|
| 2172095 |
Ophiosphaerella fungi |
Ophiosphaerella spp. |
|
| 2172060 |
Leptosphaeria leaf blight |
Leptosphaeria spp. |
|
| 2172061 |
Leptosphaeria leaf blight |
Leptosphaeria spp. |
|
| 2172063 |
Leptosphaeria leaf blight |
Leptosphaeria spp. |
pseudothecia |
| 2171002 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2171003 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2170100 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2171001 |
Phaeosphaeria fungi |
Phaeosphaeria spp. |
|
| 2170092 |
Japanese pear scab |
Venturia nashicola |
Fusicladium sp. state of Venturia nashicola |
| 2170060 |
Phoma blights |
Phoma spp. |
|
| 2170056 |
Phoma blights |
Phoma spp. |
|
| 2170057 |
Phoma blights |
Phoma spp. |
|
| 2170058 |
Phoma blights |
Phoma spp. |
|
| 5393411 |
early blight |
Alternaria solani |
Black conidia mass on tomato |
| 5042100 |
black knot |
Apiosporina morbosa |
Black knot of cherry. Multiple galls on small tree. Bob Heyd in image |
| 5389696 |
Leptosphaerulina leaf blights |
Leptosphaerulina spp. |
|
| 5389698 |
Leptosphaerulina leaf blights |
Leptosphaerulina spp. |
|
| 5389699 |
Leptosphaerulina leaf blights |
Leptosphaerulina spp. |
|
| 5389700 |
Leptosphaerulina leaf blights |
Leptosphaerulina spp. |
|
| 1563054 |
gummy stem blight (vine decline) |
Didymella bryoniae |
The anamorph, Phoma cucurbitacearum, occurs in the field in North Carolina. Notice yellowing of the center of the rows. |
| 1563055 |
gummy stem blight (vine decline) |
Didymella bryoniae |
The anamorph, Phoma cucurbitacearum, occurs in the field in North Carolina. Typical folliar symptoms. Wilted leaves are due dry soil. |
| 1563056 |
gummy stem blight (vine decline) |
Didymella bryoniae |
The anamorph, Phoma cucurbitacearum, occurs in the field in North Carolina. Typical, early folliar symptoms. Notice necrosis on leaf margins |
| 1563057 |
gummy stem blight (vine decline) |
Didymella bryoniae |
The anamorph, Phoma cucurbitacearum, occurs in the field in North Carolina. Late folliar symptoms. Notice marginal necrosis. |
| 1563058 |
gummy stem blight (vine decline) |
Didymella bryoniae |
The anamorph, Phoma cucurbitacearum, occurs in the field in North Carolina. Late folliar symptoms. Notice marginal necrosis. |
| 1563059 |
gummy stem blight (vine decline) |
Didymella bryoniae |
The anamorph, Phoma cucurbitacearum, occurs in the field in North Carolina. Close up of late folliar symptoms. |
| 1563061 |
gummy stem blight (vine decline) |
Didymella bryoniae |
The anamorph, Phoma cucurbitacearum, occurs in North Carolina. Close up of foliar lesion showing black pycnidia embedded in necrotic tissue on adaxial surface. |
| 1563062 |
gummy stem blight (vine decline) |
Didymella bryoniae |
The anamorph, Phoma cucurbitacearum, occurs in North Carolina. Close up of foliar lesion showing black pycnidia embedded in necrotic tissue on adaxial surface. |
| 1563063 |
gummy stem blight (vine decline) |
Didymella bryoniae |
The anamorph, Phoma cucurbitacearum, occurs in North Carolina. Close up of foliar lesion showing black pycnidia embedded in necrotic tissue on adaxial surface. |
| 5390067 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
Asci, spores |
| 5390535 |
brown spot of rice |
Cochliobolus miyabeanus |
Rice seedlings with symptoms of seedling blight |
| 5392898 |
peach scab |
Venturia carpophila |
|
| 5392897 |
peach scab |
Venturia carpophila |
|
| 5390477 |
Cochliobolus leaf spot / black kernel |
Cochliobolus lunatus |
Fungal spores of the black kernel pathogen |
| 5390478 |
Cochliobolus leaf spot / black kernel |
Cochliobolus lunatus |
Black kernel grain infection |
| 5390522 |
brown spot of rice |
Cochliobolus miyabeanus |
grain infection symptoms |
| 5390523 |
brown spot of rice |
Cochliobolus miyabeanus |
Peck infected milled rice grain showing symptoms |
| 5390534 |
brown spot of rice |
Cochliobolus miyabeanus |
Rice seedlings with symptoms of seedling blight |
| 5390485 |
brown spot of rice |
Cochliobolus miyabeanus |
Rice leaf with brown spot infection |
| 5390489 |
brown spot of rice |
Cochliobolus miyabeanus |
Close-up view of rice leaf with brown spot infection
|
| 5390490 |
brown spot of rice |
Cochliobolus miyabeanus |
Rice leaf showing severe brown spot leaf symptoms |
| 5390491 |
brown spot of rice |
Cochliobolus miyabeanus |
Rice leaf with brown spot infection symptoms |
| 5390551 |
Alternaria leaf spot |
Alternaria padwickii |
Rice leaves with stack burn (Alternaria leaf spot) symptoms |
| 5390552 |
Alternaria leaf spot |
Alternaria padwickii |
Rice leaves with stack burn (Alternaria leaf spot) symptoms |
| 5390548 |
sheath blotch of rice |
Pyrenochaeta oryzae |
Sheath blotch symptoms on rice leaf sheath |
| 5332060 |
brown spot |
Alternaria alternata |
|
| 5389804 |
black spot |
Alternaria brassicicola |
Leaf spots |
| 5389805 |
black spot |
Alternaria brassicicola |
Leaf spots |
| 5389806 |
black spot |
Alternaria brassicicola |
|
| 5390068 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
mature ascus, spores |
| 5390069 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
pseudothecia, spores |
| 5369144 |
early blight |
Alternaria solani |
Close-up of a single spore of Alternaria solani far left, a leaf hair in center, and back end of insect on right. |
| 5379671 |
shepherd's crook leaf and shoot blight |
Venturia tremulae |
|
| 5379672 |
shepherd's crook leaf and shoot blight |
Venturia tremulae |
|
| 5385853 |
leaf blotch |
Stagonospora nodorum |
Oval-shaped, brown spots with a yellow border on infected leaves |
| 5385854 |
leaf blotch |
Stagonospora nodorum |
Oval-shaped, brown spots with a yellow border on infected leaves |
| 5385855 |
leaf blotch |
Stagonospora nodorum |
Close-up of oval-shaped, brown spots with a yellow border on infected leaves |
| 5385856 |
leaf blotch |
Stagonospora nodorum |
Close-up of oval-shaped, brown spots with a yellow border on infected leaves |
| 5385857 |
leaf blotch |
Stagonospora nodorum |
Close-up of an oval-shaped, brown spot with a yellow border with reddish-colored spore-producing bodies ("pycnidia") barely visible against the color of the surrounding infected tissue. |
| 5385858 |
leaf blotch |
Stagonospora nodorum |
Close-up of an oval-shaped, brown spot with a yellow border and reddish-colored spore-producing bodies ("pycnidia") barely visible against the color of the surrounding infected tissue. |
| 5385859 |
leaf blotch |
Stagonospora nodorum |
Close-up of an oval-shaped, brown spot with a yellow border and reddish-colored spore-producing bodies ("pycnidia") barely visible against the color of the surrounding infected tissue. |
| 5385860 |
leaf blotch |
Stagonospora nodorum |
Close-up of an oval-shaped, brown spot with a yellow border and reddish-colored spore-producing bodies ("pycnidia") barely visible against the color of the surrounding infected tissue. |
| 5385861 |
leaf blotch |
Stagonospora nodorum |
Dark-field observation of infected leaf tissue with many spore-producing bodies ("pycnidia") and a measurement scale |
| 5385862 |
leaf blotch |
Stagonospora nodorum |
Dark-field observation of infected leaf tissue with several spore-producing bodies ("pycnidia") and a measurement scale |
| 5385863 |
leaf blotch |
Stagonospora nodorum |
Dark-field observation of infected leaf tissue with several spore-producing bodies ("pycnidia") and spores with a measurement scale |
| 5385864 |
leaf blotch |
Stagonospora nodorum |
Dark-field observation of asexual spores of the fungus Stagonospora nodorum with a measurement scale |
| 5385865 |
leaf blotch |
Stagonospora nodorum |
Asexual spores of the fungus Stagonospora nodorum with a measurement scale |
| 5385866 |
leaf blotch |
Stagonospora nodorum |
Asexual spores of the fungus Stagonospora nodorum with a measurement scale and measurement of some individual spores |
| 1525424 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 1525425 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 1525426 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 1525427 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 1525590 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Alternaria on sunflower |
| 1525678 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 1525679 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 1525680 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 1525681 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5332045 |
Drechslera leaf spot |
Drechslera spp. |
Drechslera leaf spot |
| 5333044 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5335098 |
spur blight |
Didymella applanata |
on raspberry |
| 5335099 |
spur blight |
Didymella applanata |
on raspberry |
| 5336039 |
Drechslera leaf spot |
Drechslera spp. |
|
| 5336095 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5337074 |
peach scab |
Venturia carpophila |
|
| 5338016 |
leaf spot |
Pyrenophora phaeocomes |
microscopic view of Pyrenophora phaeocomes ascus with ascospores |
| 5335071 |
black knot |
Apiosporina morbosa |
on cherry |
| 5335072 |
black knot |
Apiosporina morbosa |
on cherry |
| 1525309 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Altenaria leafspot on Gomphreno |
| 1525310 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Altenaria leafspot on Gomphrena |
| 1525311 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Altenaria leafspot on Gomphrena |
| 1525313 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Altenaria leafspot on Gomphrena |
| 1525314 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Altenaria leafspot on Gomphrena |
| 1525315 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5364063 |
pink root of onion |
Phoma terrestris |
Cultures of the onion pink root fungus, Phoma terrestris, on Sneh's medium in the laboratory. Isolated from onion (Allium cepa) |
| 5383187 |
brown spot |
Alternaria alternata |
Lesions on pumpkin |
| 5383188 |
brown spot |
Alternaria alternata |
Lesions on pumpkin |
| 5383189 |
brown spot |
Alternaria alternata |
Dark mass of conidia |
| 5383190 |
brown spot |
Alternaria alternata |
Lesions on pumpkin |
| 5368951 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
|
| 5368950 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
The sexual spore stage is seen as many brown ascus sacs containing “ascospores”. |
| 5368278 |
Alternaria leaf blight |
Alternaria cucumerina |
Close-up of infected spot where dark dashes are the asexual spores. |
| 5368279 |
Alternaria leaf blight |
Alternaria cucumerina |
Close-up of infected spot where dark dashes are the asexual spores. |
| 5368280 |
Alternaria leaf blight |
Alternaria cucumerina |
Close-up of infected spot where dark dashes are the asexual spores. |
| 5368351 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Stained, asexual spores of the fungal anamorph, Phoma cucurbitacearum. |
| 5368808 |
Alternaria leaf blight |
Alternaria cucumerina |
Significantly infected leaves turn brown and brittle. |
| 5368809 |
Alternaria leaf blight |
Alternaria cucumerina |
Close-up of one leaf with many spots having a lighter center portion and darker outer border. |
| 5368810 |
Alternaria leaf blight |
Alternaria cucumerina |
Close-up of infected spot where dark dashes are the asexual spores. |
| 5368811 |
Alternaria leaf blight |
Alternaria cucumerina |
Close-up of one leaf with many spots having a lighter center portion and darker outer border and some with concentric rings. |
| 5368857 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Dark brown leaf spots often with concentric rings. |
| 5368858 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Close-up of leaf spots with concentric rings. |
| 5368859 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Close-up of leaf spots with concentric rings. Spots often occur along margins of leaves. |
| 5368860 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Earlier stage of leaf spot development before all infected tissue turns dark brown. |
| 5368887 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Asexual spore-producing structures "pycnidia" with spores oozing out, seen in infected tissue. |
| 5368945 |
Alternaria leaf blight |
Alternaria cucumerina |
Leaf having multiple spots with concentric rings. |
| 5368946 |
Alternaria leaf blight |
Alternaria cucumerina |
Leaf having multiple spots with concentric rings. |
| 5368947 |
Alternaria leaf blight |
Alternaria cucumerina |
Close-up of multiple spots with concentric rings. |
| 5368948 |
Alternaria leaf blight |
Alternaria cucumerina |
Close-up of multiple spots with concentric rings. |
| 5368949 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
The sexual spore stage is seen as “ascospores” within an “ascus”. |
| 5369017 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Conidia enbedded in infected leaf tissue under darkfield observation. |
| 5369018 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Asexual spores of the fungal anamorph, Phoma cucurbitacearum. |
| 5369019 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Dark brown leaf spots often with concentric rings. |
| 5369020 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Close-up of dark brown leaf spot with concentric rings.
|
| 5369141 |
early blight |
Alternaria solani |
Close-up of a single leaf spot showing darkened rings looking like a target. |
| 5369142 |
early blight |
Alternaria solani |
Leaf spotting due to Early blight. |
| 5369143 |
early blight |
Alternaria solani |
Close-up of the spores of Alternaria solani coming from an infected leaf spot. |
| 5369145 |
early blight |
Alternaria solani |
Conidiophores and conidia of Alternaria solani. |
| 5369146 |
early blight |
Alternaria solani |
A single spore of Alternaria solani. |
| 5369147 |
early blight |
Alternaria solani |
A stem canker due to Early blight. |
| 5369148 |
early blight |
Alternaria solani |
Close-up of leaf spotting. |
| 5331081 |
black spot |
Alternaria brassicicola |
|
| 5332095 |
Pyrenophora leaf blight |
Drechslera dictyoides |
|
| 5333010 |
spring dead spot |
Ophiosphaerella korrae |
Pennsylvania State University field trials |
| 5333008 |
spring dead spot |
Ophiosphaerella korrae |
Pennsylvania State University field trials |
| 5333007 |
spring dead spot |
Ophiosphaerella korrae |
Pennsylvania State University field trials |
| 5333009 |
spring dead spot |
Ophiosphaerella korrae |
Pennsylvania State University field trials |
| 5333066 |
Phoma blights |
Phoma spp. |
|
| 5334019 |
apple scab |
Venturia inaequalis |
Crabapple |
| 5334020 |
apple scab |
Venturia inaequalis |
Crabapple |
| 5332086 |
leaf blotch |
Stagonospora nodorum |
|
| 5332087 |
leaf blotch |
Stagonospora nodorum |
|
| 5332088 |
leaf blotch |
Stagonospora nodorum |
|
| 5333054 |
early blight |
Alternaria solani |
|
| 2169098 |
Embellisia skin blotch and bulb canker of garlic |
Embellisia allii |
|
| 2170052 |
Phoma blights |
Phoma spp. |
|
| 2170053 |
Phoma blights |
Phoma spp. |
|
| 5223087 |
early blight |
Alternaria solani |
|
| 5372325 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5372326 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5372327 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5362727 |
purple blotch |
Alternaria porri |
onion purple blotch, disease, Alternaria porri |
| 5373068 |
Phoma blights |
Phoma spp. |
|
| 5373067 |
Phoma blights |
Phoma spp. |
|
| 1263082 |
ray (flower) blight of chrysanthemum |
Didymella ligulicola |
dieback of cuttings |
| 1263086 |
ray (flower) blight of chrysanthemum |
Didymella ligulicola |
|
| 1263074 |
black spot of Japanese pear |
Alternaria kikuchiana |
Black spot |
| 1263075 |
Alternaria blotch of apple |
Alternaria mali |
Necrotic lesion |
| 1949017 |
black knot |
Apiosporina morbosa |
Branches of Prunus domestica severely infected by Apiosporina morbosa. |
| 0725099 |
gangrene |
Phoma exigua var. foveata |
External symptoms of Phoma exigua var. foveata on potato tubers showing irregularly shaped, sunken lesions. |
| 0725098 |
gangrene |
Phoma exigua var. foveata |
Internal symptoms of Phoma exigua var. foveata on potato tubers showing more or less extensive cavities with definitive margins. Black and white photo |
| 0725075 |
Japanese pear scab |
Venturia nashicola |
|
| 0725048 |
Japanese pear scab |
Venturia nashicola |
Symptoms of Venturia nashicola on Japanese pear, Pyrus pyrifolia cv. Hosui. |
| 0660093 |
mal secco |
Phoma tracheiphila |
Lemon tree severely affected by mal secco (Deuterophoma tracheiphila) |
| 0660030 |
black potato blight |
Phoma andigena |
Symptoms of Phoma andigena on a potato leaf collected in the field in the Peruvian highlands. |
| 0656089 |
ray (flower) blight of chrysanthemum |
Didymella ligulicola |
Symptoms of Didymella ligulicola on flowering stems of chrysanthemum. Black and white image |
| 5360402 |
Coniothyrium fungus |
Coniothyrium concentricum |
Yucca (Yucca spp.) leaf showing symptoms of fungal leaf spot infection caused by Coniothyrium concentricum. |
| 5358918 |
pear scab |
Venturia pirina |
A pear fruit showing symptoms of the pear scab disease caused by Venturia pirina. |
| 0656044 |
mal secco |
Phoma tracheiphila |
Wood discoloration in a lemon tree (Citrus limon) infected by mal secco (Deuterophoma tracheiphila). |
| 5372680 |
Rostratum leaf spot |
Exserohilum rostratum |
|
| 5372675 |
Rostratum leaf spot |
Exserohilum rostratum |
|
| 5372674 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 5372673 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 5372667 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 5372668 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 5372666 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 5372283 |
Curvularia fungus |
Curvularia trifolii |
|
| 5372282 |
Curvularia fungus |
Curvularia trifolii |
|
| 5372281 |
Cochliobolus leaf spot / black kernel |
Cochliobolus lunatus |
|
| 5372280 |
Cochliobolus leaf spot / black kernel |
Cochliobolus lunatus |
|
| 5372279 |
Cochliobolus leaf spot / black kernel |
Cochliobolus lunatus |
|
| 5372278 |
Cochliobolus leaf spot / black kernel |
Cochliobolus lunatus |
|
| 5372189 |
stem canker |
Leptosphaeria coniothyrium |
|
| 5372188 |
stem canker |
Leptosphaeria coniothyrium |
|
| 5372186 |
stem canker |
Leptosphaeria coniothyrium |
|
| 5372187 |
stem canker |
Leptosphaeria coniothyrium |
|
| 5372185 |
stem canker |
Leptosphaeria coniothyrium |
|
| 5372184 |
stem canker |
Leptosphaeria coniothyrium |
|
| 5372147 |
peach scab |
Venturia carpophila |
|
| 5372146 |
peach scab |
Venturia carpophila |
|
| 5372041 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5372042 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5372040 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5372038 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5372039 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5372037 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5372036 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5372035 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5372033 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5372034 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5361540 |
Phoma blight |
Phoma macdonaldii |
A sunflower plant with Phoma black stem infection caused by Phoma macdonaldii. |
| 5361539 |
Phoma blight |
Phoma macdonaldii |
A sunflower field with Phoma black stem infection caused by Phoma macdonaldii. |
| 5361538 |
Phoma blight |
Phoma macdonaldii |
A sunflower field with Phoma black stem infection caused by Phoma macdonaldii. |
| 1540479 |
black knot |
Apiosporina morbosa |
|
| 1540478 |
black knot |
Apiosporina morbosa |
9/11/1995 |
| 1540477 |
black knot |
Apiosporina morbosa |
9/11/1995 |
| 1540476 |
black knot |
Apiosporina morbosa |
9/11/1995 |
| 1540475 |
black knot |
Apiosporina morbosa |
9/11/1995 |
| 1540474 |
black knot |
Apiosporina morbosa |
9/11/1995 |
| 5362697 |
Alternaria black molds / stem cankers |
Alternaria spp. |
A sunflower leaf with Alternaria leaf spot infection caused by Alternaria spp. in the field. |
| 5360401 |
Alternaria black molds / stem cankers |
Alternaria spp. |
A cabbage leaf with symptoms of Alternaria leaf spot infection caused by the fungus Alternaria spp. in the field. |
| 5360400 |
Alternaria black molds / stem cankers |
Alternaria spp. |
A cabbage leaf with symptoms of Alternaria leaf spot infection caused by the fungus Alternaria spp. in the field. |
| 5358420 |
brown spot |
Alternaria alternata |
Melon plants with Alternaria leaf spot symptoms caused by Alternaria alternata f.sp. cucurbitae in the field.. |
| 5358421 |
brown spot |
Alternaria alternata |
Melon leaves with Alternaria leaf spot symptoms caused by Alternaria alternata f.sp. cucurbitae in the field.. |
| 5358422 |
brown spot |
Alternaria alternata |
A close-up shot of a melon leaf with Alternaria leaf spot symptoms caused by Alternaria alternata f.sp. cucurbitae. |
| 5359703 |
Helminthosporium leaf spot |
Helminthosporium spp. |
Lawn severely affected by infection with Helminthosporium spp., Bipolaris sp., and Exserohilum sp. fungi. |
| 1525098 |
Alternaria blight |
Alternaria dianthicola |
Alternaria on Carnation |
| 1525100 |
Alternaria blight |
Alternaria dianthicola |
Alternaria on Carnation |
| 1525101 |
Alternaria blight |
Alternaria dianthicola |
Alternaria dianthicola on Carnation |
| 1525097 |
Alternaria blight |
Alternaria dianthicola |
Alternaria on Carnation |
| 1525099 |
Alternaria blight |
Alternaria dianthicola |
Alternaria on Carnation |
| 5356731 |
Drechslera leaf spot |
Drechslera spp. |
Turf showing signs of infection with Melting Out fungus. |
| 5356730 |
Drechslera leaf spot |
Drechslera spp. |
Turf showing signs of infection with Melting Out fungus. |
| 5356986 |
Helminthosporium leaf spot |
Helminthosporium spp. |
Close-up view of rice leaves showing signs and symptoms of infection with Brown Spot (Helminthosporium oryzae). |
| 5356985 |
Helminthosporium leaf spot |
Helminthosporium spp. |
Rice leaves showing signs and symptoms of infection with Brown Spot (Helminthosporium oryzae). |
| 5356984 |
Helminthosporium leaf spot |
Helminthosporium spp. |
Rice plants showing signs and symptoms of infection with Brown Spot (Helminthosporium oryzae). |
| 1494051 |
brown spot |
Alternaria alternata |
|
| 5362221 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Apricot fruits showing symptoms of infection with Alternaria spot (Alternaria sp.). |
| 5362500 |
early blight |
Alternaria solani |
Potato plants with early blight (Alternaria solani) infection in the field. |
| 5362499 |
early blight |
Alternaria solani |
Potato leaves showing early blight (Alternaria solani) infection in the field. |
| 5362498 |
early blight |
Alternaria solani |
Potato leaves showing early blight (Alternaria solani) infection in the field. |
| 5362497 |
early blight |
Alternaria solani |
Potato leaves showing early blight (Alternaria solani) infection in the field. |
| 5362496 |
early blight |
Alternaria solani |
A field of potatoes showing early blight (Alternaria solani) infection. |
| 5362495 |
early blight |
Alternaria solani |
Early blight (Alternaria solani) symptoms on a potato stem in the field. |
| 5362494 |
early blight |
Alternaria solani |
Early blight (Alternaria solani) symptoms on a potato stem in the field. |
| 5362493 |
early blight |
Alternaria solani |
Early blight (Alternaria solani) symptoms on a potato leaf in the field. |
| 5362491 |
early blight |
Alternaria solani |
Early blight (Alternaria solani) symptoms on a potato leaf in the field. |
| 5362489 |
early blight |
Alternaria solani |
Early blight (Alternaria solani) symptoms on a potato leaf in the field. |
| 5362490 |
early blight |
Alternaria solani |
Early blight (Alternaria solani) symptoms on a potato leaf in the field. |
| 5362492 |
early blight |
Alternaria solani |
Early blight (Alternaria solani) symptoms on a potato leaf in the field. |
| 5362488 |
early blight |
Alternaria solani |
Early blight (Alternaria solani) symptoms on potato leaves in the field. |
| 5362487 |
early blight |
Alternaria solani |
Early blight (Alternaria solani) symptoms on potato leaves in the field. |
| 5362486 |
early blight |
Alternaria solani |
Early blight (Alternaria solani) symptoms on a potato leaf in the field. |
| 5362476 |
early blight |
Alternaria solani |
A plot showing fungicide Control and No Control treatments of early blight (Alternaria solani) on a potato field. |
| 5362475 |
early blight |
Alternaria solani |
An Early Blight (Alternaria solani) study on a potato field at Lucerne in 1997. |
| 5362473 |
early blight |
Alternaria solani |
An Early Blight (Alternaria solani) study on a potato field at Lucerne in 1997. |
| 5362474 |
early blight |
Alternaria solani |
An Early Blight (Alternaria solani) study on a potato field at Lucerne in 1997. |
| 5362471 |
early blight |
Alternaria solani |
An Early Blight (Alternaria solani) study on a potato field at Lucerne in 1997. |
| 5362472 |
early blight |
Alternaria solani |
An Early Blight (Alternaria solani) study on a potato field at Lucerne in 1997. |
| 5362469 |
early blight |
Alternaria solani |
An Early Blight (Alternaria solani) study on a potato field at Lucerne in 1997. |
| 5362470 |
early blight |
Alternaria solani |
An Early Blight (Alternaria solani) study on a potato field at Lucerne in 1997. |
| 5362467 |
early blight |
Alternaria solani |
An Early Blight (Alternaria solani) study on a potato field at Lucerne in 1997. |
| 5362466 |
early blight |
Alternaria solani |
An Early Blight (Alternaria solani) study on a potato field at Lucerne in 1997. |
| 5362468 |
early blight |
Alternaria solani |
An Early Blight (Alternaria solani) study on a potato field at Lucerne in 1998. |
| 5362464 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362462 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362463 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362460 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362461 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362458 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362459 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362455 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362456 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362457 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362454 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362451 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362452 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362449 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362450 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362453 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Screening Study on a potato field in 1997. |
| 5362448 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Timing Study on a potato field in 1997. |
| 5362447 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Timing Study on a potato field in 1997. |
| 5362446 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Timing Study on a potato field in 1997. |
| 5362445 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) and Late Blight (Phytophthora infestans) Timing Study on a potato field in 1997. |
| 5362444 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Timing Study on a potato field in 1997. |
| 5362443 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Timing Study on a potato field in 1997. |
| 5362442 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Timing Study on a potato field in 1997. |
| 5362440 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Timing Study on a potato field in 1997. |
| 5362441 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Timing Study on a potato field in 1997. |
| 5362438 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Timing Study on a potato field in 1997. |
| 5362439 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Timing Study on a potato field in 1997. |
| 5362436 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Timing Study on a potato field in 1997. |
| 5362437 |
early blight |
Alternaria solani |
An ARDEC Early Blight (Alternaria solani) Timing Study on a potato field in 1997. |
| 5362529 |
early blight |
Alternaria solani |
A potato field with early blight symptoms caused by Alternaria solani. Also shown is a spectrum weather station equipment used for disease modeling and forcasting in a potato field. |
| 5365618 |
brown spot |
Alternaria alternata |
Potato leaves showing Alternaria blight infection caused by Alternaria alternata. |
| 5361639 |
early blight |
Alternaria solani |
A potato leaflet showing early blight symptoms caused by the fungus Alternaria solani in the field. |
| 5361637 |
early blight |
Alternaria solani |
Potato plants showing early blight symptoms caused by the fungus Alternaria solani in the field. |
| 5361638 |
early blight |
Alternaria solani |
Potato plants showing early blight symptoms caused by the fungus Alternaria solani in the field. |
| 5356779 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Castorbean (Ricinus communis) fruits showing symptoms of Alternaria leaf spot (Alternaria sp.). |
| 5356778 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Castorbean plant (Ricinus communis) leaf showing symptoms of Alternaria leaf spot (Alternaria sp.). |
| 5356777 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Castorbean plant (Ricinus communis) showing symptoms of Alternaria leaf spot (Alternaria sp.). |
| 5362780 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Alternaria leaf spot (Alternaria sp.) on cantaloupe leaves. |
| 5366835 |
brown felt blight |
Herpotrichia juniperi |
Conifer limbs showing signs of brown felt blight (Herpotrichia juniperi). |
| 5366816 |
shepherd's crook leaf and shoot blight |
Venturia tremulae |
Young aspen tree showing symptoms of shoot blight (Venturia tremulae). |
| 5366693 |
black knot |
Apiosporina morbosa |
Black knot canker (Apiosporina morbosa) on branches of chokecherry (Prunus virginiana). |
| 5362910 |
early blight |
Alternaria solani |
Potato early blight (Alternaria solani) trial on f field at Wray. |
| 5362909 |
early blight |
Alternaria solani |
Potato early blight (Alternaria solani) trial on f field at Wray. |
| 5362908 |
early blight |
Alternaria solani |
A potato plant showing early blight infection caused by Alternaria solani. |
| 5362907 |
early blight |
Alternaria solani |
A potato plant showing early blight infection caused by Alternaria solani. |
| 5362906 |
early blight |
Alternaria solani |
A potato field showing early blight infection caused by Alternaria solani. |
| 5359095 |
early blight |
Alternaria solani |
Potato plants showing early blight symptoms caused by Alternaria solani in the field. |
| 5359094 |
early blight |
Alternaria solani |
A potato field showing early blight symptoms caused by Alternaria solani in the field. |
| 5359093 |
early blight |
Alternaria solani |
A potato leaf showing early blight symptoms caused by Alternaria solani in the field. |
| 5359092 |
early blight |
Alternaria solani |
A potato leaf showing early blight symptoms caused by Alternaria solani in the field. |
| 5366834 |
brown felt blight |
Herpotrichia juniperi |
Young spruce tree showing symptoms of brown felt blight, Herpotrichia juniperi. |
| 5366833 |
brown felt blight |
Herpotrichia juniperi |
Spruce tree showing symptoms of brown felt blight, Herpotrichia juniperi. |
| 5366822 |
apple scab |
Venturia inaequalis |
Microscope view of the conidia of apple scab (Venturia inaequalis). |
| 5366821 |
apple scab |
Venturia inaequalis |
Close-up view of apple scab (Venturia inaequalis) on a crabapple leaf. |
| 5366820 |
apple scab |
Venturia inaequalis |
Close-up view of apple scab (Venturia inaequalis) on a crabapple leaf. |
| 5366819 |
apple scab |
Venturia inaequalis |
Apple scab (Venturia inaequalis) on crabapple. |
| 5366818 |
shepherd's crook leaf and shoot blight |
Venturia tremulae |
Shepherd's crook leaf and shoot blight (Venturia tremulae) on aspen. |
| 5366817 |
shepherd's crook leaf and shoot blight |
Venturia tremulae |
Shepherd's crook leaf and shoot blight (Venturia tremulae) on aspen. |
| 5366815 |
shepherd's crook leaf and shoot blight |
Venturia tremulae |
Shepherd's crook leaf and shoot blight (Venturia tremulae) on aspen. |
| 5366814 |
shepherd's crook leaf and shoot blight |
Venturia tremulae |
Shepherd's crook leaf and shoot blight (Venturia tremulae) on aspen. |
| 5366813 |
shepherd's crook leaf and shoot blight |
Venturia tremulae |
Aspen tree severely affected by shepherd's crook leaf and shoot blight (Venturia tremulae). |
| 5366812 |
shepherd's crook leaf and shoot blight |
Venturia tremulae |
Shepherd's crook leaf and shoot blight (Venturia tremulae) on aspen. |
| 5366811 |
shepherd's crook leaf and shoot blight |
Venturia tremulae |
Shepherd's crook leaf and shoot blight (Venturia tremulae) on aspen. |
| 5366810 |
shepherd's crook leaf and shoot blight |
Venturia tremulae |
Shepherd's crook leaf and shoot blight (Venturia tremulae) on aspen. |
| 5366695 |
black knot |
Apiosporina morbosa |
Branches of a chokecherry (Prunus virginiana) showing signs and symptoms of black knot canker (Apiosporina morbosa). |
| 5366694 |
black knot |
Apiosporina morbosa |
Cross-section of the trunk of a chokecherry (Prunus virginiana) showing signs and symptoms of black knot canker (Apiosporina morbosa). |
| 5366692 |
black knot |
Apiosporina morbosa |
Section of a chokecherry branch (Prunus virginiana) showing signs and symptoms of black knot canker (Apiosporina morbosa). |
| 5360403 |
Coniothyrium fungus |
Coniothyrium concentricum |
Yucca (Yucca spp.) leaf showing symptoms of a fungal leaf spot caused by Coniothyrium concentricum. |
| 5362505 |
early blight |
Alternaria solani |
Signs and symptoms of early blight (Alternaria solani), a disease of potatoes, on the leaf of a weedy nightshade (Solanum sp.). |
| 5361023 |
pink root of onion |
Phoma terrestris |
Corn rootcrown cut open to show damage and symptoms of red root rot (Phoma terrestris). |
| 5361022 |
pink root of onion |
Phoma terrestris |
Corn rootcrown cut open to show damage and symptoms of red root rot (Phoma terrestris). |
| 5361020 |
pink root of onion |
Phoma terrestris |
Close-up view of corn roots displaying signs and symptoms of red root rot (Phoma terrestris). |
| 5361021 |
pink root of onion |
Phoma terrestris |
Close-up view of corn roots displaying signs and symptoms of red root rot (Phoma terrestris). |
| 5361019 |
pink root of onion |
Phoma terrestris |
Close-up view of corn roots displaying signs and symptoms of red root rot (Phoma terrestris). |
| 5361018 |
pink root of onion |
Phoma terrestris |
Close-up view of corn roots displaying signs and symptoms of red root rot (Phoma terrestris). |
| 5361017 |
pink root of onion |
Phoma terrestris |
Field corn roots displaying symptoms of red root rot (Phoma terrestris). |
| 5361016 |
pink root of onion |
Phoma terrestris |
Corn roots displaying symptoms of red root rot (Phoma terrestris). |
| 5362503 |
early blight |
Alternaria solani |
Symptoms of early blight (Alternaria solani) on a volunteer potato plant growing in field corn. |
| 5362502 |
early blight |
Alternaria solani |
Symptoms of early blight (Alternaria solani) on a volunteer potato plant growing in field corn. |
| 1524158 |
brown spot |
Alternaria alternata |
Alternaria; Brown spot on lower leaf |
| 5358907 |
Phoma blight |
Phoma exigua var. exigua |
Ascochyta blight on a bean petiole and branch casued by Phoma exigua var. exigua in a field in Colombia. |
| 5358906 |
Phoma blight |
Phoma exigua var. exigua |
Ascochyta blight of bean leaves casued by Phoma exigua var. exigua in a field in Colombia. |
| 5358873 |
brown spot |
Alternaria alternata |
Drybean plant showing symptoms of Alternaria leaf and pod spot caused by Aternaria alternata on a bean field in Colombia. |
| 5357627 |
Phoma blights |
Phoma spp. |
Close-up view of a bean stem displaying symptoms of Phoma leaf spot (Phoma sp.). |
| 5357626 |
Phoma blights |
Phoma spp. |
Symptoms of Phoma leaf spot (Phoma sp.) on the foliage of a bean plant. |
| 5362263 |
purple blotch |
Alternaria porri |
Purple blotch (Alternaria porri), a disease of onions. |
| 5364058 |
purple blotch |
Alternaria porri |
Purple blotch lesion on the neck region of an onion plant caused by Alternaria porri. |
| 5364056 |
purple blotch |
Alternaria porri |
An onion fungicide test plot at Vineland used in the study of onion purple blotch caused by Alternaria porri. |
| 5362728 |
purple blotch |
Alternaria porri |
onion purple blotch, disease, Alternaria porri |
| 5362726 |
purple blotch |
Alternaria porri |
onion purple blotch, disease, Alternaria porri |
| 5362725 |
purple blotch |
Alternaria porri |
onion purple blotch, disease, Alternaria porri |
| 5362724 |
purple blotch |
Alternaria porri |
onion purple blotch, disease, Alternaria porri |
| 5362723 |
purple blotch |
Alternaria porri |
onion purple blotch, disease, Alternaria porri |
| 5362722 |
purple blotch |
Alternaria porri |
onion purple blotch, disease, Alternaria porri |
| 5362721 |
purple blotch |
Alternaria porri |
onion, purple blotch, disease, Alternaria porri |
| 5362720 |
purple blotch |
Alternaria porri |
disease, onion, purple blotch, Alternaria porri |
| 5362946 |
purple blotch |
Alternaria porri |
A field trial of onions for the purple blocth disease caused by Alternaria porri. |
| 5362945 |
purple blotch |
Alternaria porri |
A field trial of onions for the purple blocth disease caused by Alternaria porri. |
| 5362944 |
purple blotch |
Alternaria porri |
An onion field during the mid stages of the purple blocth disease caused by Alternaria porri trial in the field. |
| 5362943 |
purple blotch |
Alternaria porri |
An onion field during the mid stages of the purple blocth disease caused by Alternaria porri trial in the field. |
| 5362942 |
purple blotch |
Alternaria porri |
An onion field during the early stages of the purple blocth disease caused by Alternaria porri trial in the field. |
| 5362941 |
purple blotch |
Alternaria porri |
An onion plant with the purple blocth disease caused by Alternaria porri in the field. |
| 5362939 |
purple blotch |
Alternaria porri |
An onion plant with the purple blocth disease caused by Alternaria porri in the field. |
| 5362940 |
purple blotch |
Alternaria porri |
An onion plant with the purple blocth disease caused by Alternaria porri in the field. |
| 5362926 |
purple blotch |
Alternaria porri |
A volunteer onion plant with the purple blocth disease caused by Alternaria porri in a winter wheat field as identified by Dave Herrera. |
| 5362925 |
purple blotch |
Alternaria porri |
A volunteer onion plant with the purple blocth disease caused by Alternaria porri in a winter wheat field |
| 5361504 |
pink root of onion |
Phoma terrestris |
A young onion bulb showing Pink root, Phoma terrestris, infection on the field. |
| 5361488 |
purple blotch |
Alternaria porri |
An in-filed focus on the symptoms of purple blotch Alternaria porri on a field of onion plants. |
| 5361487 |
purple blotch |
Alternaria porri |
Advanced symptoms of onion purple blotch Alternaria porri on a field of onion plants. |
| 5361486 |
purple blotch |
Alternaria porri |
Early leaf symptoms of onion purple blotch Alternaria porri on onion. |
| 5359352 |
pink root of onion |
Phoma terrestris |
Bulb and root showing evidence of pink root of onion (Phoma terrestris). |
| 1496067 |
apple scab |
Venturia inaequalis |
Apple scab |
| 1525095 |
Alternaria blight |
Alternaria dianthicola |
Alternaria on Carnation |
| 1525096 |
Alternaria blight |
Alternaria dianthicola |
Alternaria on Carnation |
| 1525092 |
Alternaria blight |
Alternaria dianthicola |
Alternaria on Carnation |
| 1525093 |
Alternaria blight |
Alternaria dianthicola |
Alternaria on Carnation |
| 1525094 |
Alternaria blight |
Alternaria dianthicola |
Alternaria on Carnation |
| 1525089 |
Alternaria blight |
Alternaria dianthicola |
Alternaria on Carnation |
| 1525090 |
Alternaria blight |
Alternaria dianthicola |
Alternaria on Carnation |
| 1525091 |
Alternaria blight |
Alternaria dianthicola |
Alternaria on Carnation |
| 1524021 |
Southern corn leaf blight and stalk rot |
Bipolaris maydis |
|
| 1496056 |
apple scab |
Venturia inaequalis |
apple scab |
| 1492047 |
black knot |
Apiosporina morbosa |
Plum Black knot |
| 1493068 |
Helminthosporium leaf spot |
Helminthosporium spp. |
Barley |
| 1493072 |
Helminthosporium leaf spot |
Helminthosporium spp. |
Barley stripe |
| 1493073 |
Helminthosporium leaf spot |
Helminthosporium spp. |
Barley stripe |
| 1493074 |
Helminthosporium leaf spot |
Helminthosporium spp. |
Barley stripe |
| 1493090 |
Phoma blight |
Phoma medicaginis |
|
| 1493036 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 1493037 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 1493038 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 1493124 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 1493127 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 1493041 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 1493042 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 1493050 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 1493051 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 1493052 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 1493053 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 1493054 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 1492152 |
maple cankers |
Stegonsporium spp. |
Fusicoccum |
| 1494048 |
leaf blotch |
Stagonospora nodorum |
|
| 1492048 |
black knot |
Apiosporina morbosa |
|
| 1492049 |
black knot |
Apiosporina morbosa |
|
| 1492042 |
black knot |
Apiosporina morbosa |
|
| 1492043 |
black knot |
Apiosporina morbosa |
|
| 1492044 |
black knot |
Apiosporina morbosa |
|
| 1492045 |
black knot |
Apiosporina morbosa |
|
| 1492046 |
black knot |
Apiosporina morbosa |
|
| 1496057 |
apple scab |
Venturia inaequalis |
Apple scab |
| 1496058 |
apple scab |
Venturia inaequalis |
Apple scab |
| 1492165 |
peach scab |
Venturia carpophila |
symptomatic fruit on left |
| 1492175 |
peach scab |
Venturia carpophila |
Peach scab |
| 1496075 |
apple scab |
Venturia inaequalis |
Apple scab |
| 1496079 |
apple scab |
Venturia inaequalis |
scab |
| 1496080 |
apple scab |
Venturia inaequalis |
scab on apple |
| 1496081 |
apple scab |
Venturia inaequalis |
scab on apple |
| 1496082 |
apple scab |
Venturia inaequalis |
scab |
| 1496083 |
apple scab |
Venturia inaequalis |
scab |
| 1496085 |
apple scab |
Venturia inaequalis |
scab on apple |
| 1496022 |
apple scab |
Venturia inaequalis |
scab on apple |
| 1496042 |
apple scab |
Venturia inaequalis |
apple scab |
| 1496043 |
apple scab |
Venturia inaequalis |
apple scab |
| 1496044 |
apple scab |
Venturia inaequalis |
scab |
| 1496045 |
apple scab |
Venturia inaequalis |
scab on young leaf of apple |
| 1496047 |
apple scab |
Venturia inaequalis |
apple scab |
| 1496048 |
apple scab |
Venturia inaequalis |
scab on apple |
| 1494050 |
brown spot |
Alternaria alternata |
|
| 1492176 |
brown spot |
Alternaria alternata |
Alternaria ghostyeat on peach |
| 1497002 |
brown spot |
Alternaria alternata |
Brown spot on tobacco |
| 1497003 |
brown spot |
Alternaria alternata |
Brown spot on tabacco |
| 5027019 |
apple scab |
Venturia inaequalis |
asci from squashed pseudothecia |
| 1524015 |
Southern corn leaf blight and stalk rot |
Bipolaris maydis |
Himaydis lesion on shuck and leaves |
| 1524016 |
Southern corn leaf blight and stalk rot |
Bipolaris maydis |
|
| 1524018 |
Southern corn leaf blight and stalk rot |
Bipolaris maydis |
|
| 1524020 |
Southern corn leaf blight and stalk rot |
Bipolaris maydis |
|
| 1524022 |
Southern corn leaf blight and stalk rot |
Bipolaris maydis |
|
| 1524012 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5077012 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Gummy Stem Blight on Watermelon (Didymella bryoniae); Stems show dark, water-soaked lesions often containing black, "pimple-like" fruiting structures. |
| 5267077 |
Alternaria blight |
Alternaria panax |
conidiophore |
| 5261046 |
Southern corn leaf blight and stalk rot |
Bipolaris maydis |
|
| 5047074 |
black knot |
Apiosporina morbosa |
Sporulating galls of the black knot fungus. |
| 5047077 |
black knot |
Apiosporina morbosa |
Heavy infection of cherry by black knot |
| 5220068 |
early blight |
Alternaria solani |
|
| 5220069 |
early blight |
Alternaria solani |
|
| 5223088 |
early blight |
Alternaria solani |
|
| 5223089 |
early blight |
Alternaria solani |
|
| 5223090 |
early blight |
Alternaria solani |
|
| 5223091 |
early blight |
Alternaria solani |
|
| 5223086 |
early blight |
Alternaria solani |
|
| 5261035 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261036 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261037 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261038 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261039 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261040 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261041 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261042 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261043 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261044 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261045 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261047 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261048 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5260096 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5260097 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5260098 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5260099 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5260100 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261001 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261002 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261003 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261004 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261005 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261006 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261007 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261008 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261009 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261010 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261011 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261012 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261013 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261014 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261015 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261016 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261017 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261018 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261019 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261020 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261021 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261022 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261023 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261024 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261025 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261026 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261027 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261028 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261029 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261030 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261031 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261032 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261033 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5223084 |
Alternaria blight |
Alternaria panax |
|
| 5223085 |
Alternaria blight |
Alternaria panax |
|
| 5223092 |
Alternaria blight |
Alternaria tenuissima |
|
| 5223093 |
Alternaria blight |
Alternaria tenuissima |
|
| 5223094 |
Alternaria blight |
Alternaria tenuissima |
|
| 5220082 |
stem canker |
Leptosphaeria coniothyrium |
|
| 5220083 |
stem canker |
Leptosphaeria coniothyrium |
|
| 5220084 |
stem canker |
Leptosphaeria coniothyrium |
|
| 5220086 |
stem canker |
Leptosphaeria coniothyrium |
|
| 5220072 |
Alternaria blight |
Alternaria tenuissima |
foliar symptoms |
| 5220073 |
Alternaria blight |
Alternaria tenuissima |
Foliar sympotoms |
| 5220074 |
Alternaria blight |
Alternaria tenuissima |
foliar symptoms |
| 5220070 |
early blight |
Alternaria solani |
|
| 5220071 |
early blight |
Alternaria solani |
collar rot |
| 5267078 |
Alternaria blight |
Alternaria panax |
conidiophore |
| 5267079 |
Alternaria blight |
Alternaria panax |
conidiophore |
| 5267080 |
Alternaria blight |
Alternaria panax |
conidiophore |
| 5267081 |
Alternaria blight |
Alternaria panax |
conidiophore |
| 5267082 |
Alternaria blight |
Alternaria panax |
conidiophore |
| 5267083 |
Alternaria blight |
Alternaria panax |
conidiophore |
| 5267084 |
Alternaria blight |
Alternaria panax |
conidiophore |
| 5267085 |
Alternaria blight |
Alternaria panax |
conidiophore |
| 5267086 |
Alternaria blight |
Alternaria panax |
conidiophore |
| 5267087 |
Alternaria blight |
Alternaria panax |
conidiophore |
| 5267088 |
Alternaria blight |
Alternaria panax |
conidiophore |
| 5267089 |
Alternaria blight |
Alternaria panax |
conidiophore |
| 5267090 |
Alternaria blight |
Alternaria panax |
conidiophore |
| 1502085 |
black knot |
Apiosporina morbosa |
Black knot; cherry; Dry Prong (Stuart Lake) |
| 5028017 |
black knot |
Apiosporina morbosa |
Sporocarps form on galls that often kill the twigs or stems distally from the infection. |
| 5027084 |
black knot |
Apiosporina morbosa |
Galls on small twigs usually kill the shoots distally from the gall. |
| 5028014 |
black knot |
Apiosporina morbosa |
Black knot gall (sporocarp) on black cherry |
| 5028015 |
black knot |
Apiosporina morbosa |
Older sporocarp of Apiosporina morbosa on black cherry stem. |
| 5028016 |
black knot |
Apiosporina morbosa |
Sporocarp of Apiosporina morbosa on black cherry stem. |
| 1234072 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 4214089 |
black knot |
Apiosporina morbosa |
gall and fruiting body on cherry |
| 5026049 |
apple scab |
Venturia inaequalis |
|
| 5059031 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
|
| 5059032 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
|
| 5077021 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Gummy Stem Blight on Watermelon (Didymella bryoniae); Brown to black lesions that sometimes contain concentric rings. Black "pycnidia" can be observed with hand lens. Lesions appear water- soaked or ashy. |
| 5077074 |
pink root of onion |
Phoma terrestris |
Severely infected plants appear to have a nutrient deficiency or water stress. Roots will range in color from light to deep pink. Can cause roots to become desiccated and shrivel up. Bulbs will be stunted. |
| 5076068 |
purple blotch |
Alternaria porri |
Begins as a small water-soaked lesion with a white center. Lesions usually turn purple to brown in color and may show concentric rings within lesions. |
| 5077047 |
early blight |
Alternaria solani |
Spots can be brown or black with concentric rings observed within the spot. A yellow halo often occurs around a spot or group of spots. |
| 5076079 |
Southern corn leaf blight and stalk rot |
Bipolaris maydis |
Long, irregular shaped, tan to white lesions. Lesions will appear along the leaf vein.la |
| 5077068 |
Alternaria blight |
Alternaria dauci |
Infection begins as small, round spots with concentric rings within the lesion. Lesions can also be on petioles. Lesions enlarge and grow together causing a burned appearance. |
| 5076080 |
northern corn leaf blight |
Exserohilum turcicum |
Small, tan to brown, somewhat round spots. May completely cover the leaf.1162825 |
| 5077030 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Black or brown spot. Concentric rings observed within spot. A yellow halo is often present around a spot or group of spots. Spot will sometimes drop out |
| 5077031 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Black or brown spot. Concentric rings observed within the spot. A yellow halo often occurs around a spot or group of spots. |
| 5047078 |
apple scab |
Venturia inaequalis |
|
| 5047079 |
apple scab |
Venturia inaequalis |
|
| 5047080 |
apple scab |
Venturia inaequalis |
|
| 5047081 |
apple scab |
Venturia inaequalis |
|
| 5047075 |
black knot |
Apiosporina morbosa |
|
| 5047076 |
black knot |
Apiosporina morbosa |
|
| 5061011 |
apple scab |
Venturia inaequalis |
|
| 5061012 |
apple scab |
Venturia inaequalis |
|
| 5026050 |
apple scab |
Venturia inaequalis |
Asci with mature ascospores |
| 5032073 |
apple scab |
Venturia inaequalis |
|
| 5037071 |
black knot |
Apiosporina morbosa |
on main stem |
| 5042095 |
black knot |
Apiosporina morbosa |
|
| 2169099 |
Embellisia skin blotch and bulb canker of garlic |
Embellisia allii |
spores |
| 2113093 |
brown felt blight |
Herpotrichia juniperi |
symptoms of infestation; August 2000 |
| 2113086 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
symptoms of infestation |
| 2113087 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
symptoms of infestation |
| 2113088 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
fruiting bodies on needles |
| 2111017 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
fruiting bodies on needles |
| 1415101 |
Herpotrichia fungi |
Herpotrichia spp. |
July 23, 2002 |
| 1415219 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Leaf necrosis on seedling. Sept. 21, 2003 |
| 1400123 |
black knot |
Apiosporina morbosa |
Ottawa National Forest |
| 1198023 |
black knot |
Apiosporina morbosa |
|
| 0454018 |
leaf spot of maize |
Bipolaris zeicola |
Cochliobolus carbonum conidia |
| 0176073 |
black knot |
Apiosporina morbosa |
Appearance of knots caused by Apiosporina morbosa one year after infection of plum; the dark knots have perithecia and ascospores. |
| 1241585 |
brown felt blight |
Herpotrichia juniperi |
Brown felt blight produces a thick mat of gray to dark brown mycelium on foliage that was buried under snow. |
| 1241568 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Pseudothecia on underside of needles ranging from lightly infected (left) to heavily infected (right). |
| 1241569 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Close-up of pseudothecia on underside of needle. |
| 1241570 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Micrograph of needle cross section with pseudothecia emerging from stomata on underside. |
| 1234180 |
peach scab |
Venturia carpophila |
|
| 1436027 |
Helminthosporium leaf blotch |
Drechslera avenacea |
|
| 1436030 |
barley leaf stripe |
Pyrenophora graminea |
|
| 0485009 |
black knot |
Apiosporina morbosa |
large gall |
| 2251043 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
close-up view of infected needle |
| 0590014 |
black knot |
Apiosporina morbosa |
and gall on cherry |
| 0590022 |
black knot |
Apiosporina morbosa |
gall and fruiting body on cherry |
| 0364003 |
Venturia leaf scabs and blights |
Venturia spp. |
infected leaves |
