| 1573856 |
early blight |
Alternaria solani |
Close up of diseased leaves. 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 |
| 1524017 |
Southern corn leaf blight and stalk rot |
Bipolaris maydis |
|
| 1570891 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Alternaria as secondary invader of kale stem tissue. Primary cause not known. November 1994 |
| 0176071 |
mal secco |
Phoma tracheiphila |
Lemon tree (Citrus limon) infected by mal secco. |
| 1399112 |
shepherd's crook leaf and shoot blight |
Venturia populina |
|
| 1415102 |
Herpotrichia fungi |
Herpotrichia spp. |
July 23, 2002 |
| 1467408 |
brown felt blight |
Herpotrichia juniperi |
|
| 4213004 |
shepherd's crook leaf and shoot blight |
Venturia tremulae |
|
| 1415218 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Leaf necrosis on seedling. Sept. 21, 2003 |
| 5427709 |
Alternaria blight |
Alternaria zinniae |
Small reddish brown spots with grayish centers typical of Alternaria leaf blight on zinnia |
| 5261034 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 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 |
| 5426924 |
brown spot of rice |
Cochliobolus miyabeanus |
Round to elongated spots |
| 1415113 |
Herpotrichia fungi |
Herpotrichia spp. |
July 23, 2002 |
| 5393421 |
Japanese pear scab |
Venturia nashicola |
Black colored conidia on vein of pear leaf |
| 5417115 |
Drechslera leaf spot |
Drechslera spp. |
|
| 5408860 |
apple scab |
Venturia inaequalis |
|
| 5403529 |
brown spot of rice |
Cochliobolus miyabeanus |
Round to elongated spots with yellow colored edges on rice leaves |
| 5402982 |
brown spot |
Alternaria alternata |
On Queen of Colorado variety. |
| 5393380 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
|
| 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 |
| 2178038 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 2178034 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 2178037 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 2177017 |
Drechslera leaf spot |
Drechslera spp. |
|
| 5390552 |
Alternaria leaf spot |
Alternaria padwickii |
Rice leaves with stack burn (Alternaria leaf spot) symptoms |
| 5389805 |
black spot |
Alternaria brassicicola |
Leaf spots |
| 5389806 |
black spot |
Alternaria brassicicola |
|
| 5390068 |
Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
mature ascus, spores |
| 1525681 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5336039 |
Drechslera leaf spot |
Drechslera spp. |
|
| 5372325 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5372326 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5372327 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 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 |
| 0656044 |
mal secco |
Phoma tracheiphila |
Wood discoloration in a lemon tree (Citrus limon) infected by mal secco (Deuterophoma tracheiphila). |
| 5372674 |
Helminthosporium leaf spot |
Helminthosporium spp. |
|
| 5372673 |
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 |
|
| 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. |
|
| 5372034 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5372033 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5361538 |
Phoma blight |
Phoma macdonaldii |
A sunflower field with Phoma black stem infection caused by Phoma macdonaldii. |
| 1525099 |
Alternaria blight |
Alternaria dianthicola |
Alternaria on Carnation |
| 1525098 |
Alternaria blight |
Alternaria dianthicola |
Alternaria on Carnation |
| 5356985 |
Helminthosporium leaf spot |
Helminthosporium spp. |
Rice leaves showing signs and symptoms of infection with Brown Spot (Helminthosporium oryzae). |
| 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). |
| 5366813 |
shepherd's crook leaf and shoot blight |
Venturia tremulae |
Aspen tree severely affected by shepherd's crook leaf and shoot blight (Venturia tremulae). |
| 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.). |
| 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. |
| 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 |
| 1496056 |
apple scab |
Venturia inaequalis |
apple scab |
| 1524015 |
Southern corn leaf blight and stalk rot |
Bipolaris maydis |
Himaydis lesion on shuck and leaves |
| 5220068 |
early blight |
Alternaria solani |
|
| 5220069 |
early blight |
Alternaria solani |
|
| 5223086 |
early blight |
Alternaria solani |
|
| 5223089 |
early blight |
Alternaria solani |
|
| 5223090 |
early blight |
Alternaria solani |
|
| 5223091 |
early blight |
Alternaria solani |
|
| 5261001 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261002 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261015 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5261018 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5223084 |
Alternaria blight |
Alternaria panax |
|
| 5223085 |
Alternaria blight |
Alternaria panax |
|
| 5261043 |
northern corn leaf blight |
Exserohilum turcicum |
|
| 5223092 |
Alternaria blight |
Alternaria tenuissima |
|
| 5223093 |
Alternaria blight |
Alternaria tenuissima |
|
| 5223094 |
Alternaria blight |
Alternaria tenuissima |
|
| 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 |
| 5026050 |
apple scab |
Venturia inaequalis |
Asci with mature ascospores |
| 1241568 |
Swiss needle cast |
Phaeocryptopus gaeumannii |
Pseudothecia on underside of needles ranging from lightly infected (left) to heavily infected (right). |
