| 5488705 |
chestnut blight or canker |
Cryphonectria parasitica |
mycelial fan of Cryphonectria parasitica on chestnut tissue |
| 5411358 |
black spot of elm |
Stegophora ulmea |
leaf spots |
| 5434304 |
walnut anthracnose |
Gnomonia leptostyla |
ascervuli along leaf vein |
| 5434305 |
walnut anthracnose |
Gnomonia leptostyla |
Walnut Anthracnose- conidia |
| 5434306 |
walnut anthracnose |
Gnomonia leptostyla |
Walnut Anthracnose- conidia |
| 5434307 |
walnut anthracnose |
Gnomonia leptostyla |
Walnut Anthracnose- conidia |
| 5434308 |
walnut anthracnose |
Gnomonia leptostyla |
Walnut Anthracnose- conidia |
| 5405285 |
anthracnose |
Discula spp. |
Upper surface of several leaves with large tan-brown blotchy areas starting between the major veins but eventually coalescing to blight large areas of the leaves believed to be caused by a species of Discula. |
| 5405286 |
anthracnose |
Discula spp. |
Upper surface of several leaves with large tan-brown blotchy areas starting between the major veins but eventually coalescing to blight large areas of the leaves believed to be caused by a species of Discula. |
| 5405287 |
anthracnose |
Discula spp. |
Upper surface of a single leaf with large tan-brown blotchy areas starting between the major veins but eventually coalescing to blight large areas of the leaves believed to be caused by a species of Discula. |
| 5405363 |
leaf spot |
Tubakia dryina |
Upper surface of red oak leaves with spots infected with the fungus Tubakia dryina. |
| 5405364 |
leaf spot |
Tubakia dryina |
Lower surface of red oak leaves with spots infected with the fungus Tubakia dryina. |
| 5405365 |
leaf spot |
Tubakia dryina |
Close up of upper surface of red oak leaves with spots infected with the fungus Tubakia dryina. |
| 5383027 |
oak anthracnose |
Apiognomonia errabunda |
|
| 5368937 |
black spot of elm |
Stegophora ulmea |
Leaves with small, raised black spots with a fine area of white tissue surrounding them, found mostly between the major veins. |
| 5368938 |
black spot of elm |
Stegophora ulmea |
Close-up of infected spots with blister-like, brown spore-producing bodies ("acervuli") within the spots. |
| 5368939 |
black spot of elm |
Stegophora ulmea |
Close-up of infected spots with blister-like, brown spore-producing bodies ("acervuli") within the spots. |
| 5368940 |
black spot of elm |
Stegophora ulmea |
Close-up of one infected spot with blister-like, brown spore-producing bodies ("acervuli") seen under dark-field observation. |
| 5030045 |
oak anthracnose |
Apiognomonia errabunda |
|
| 5030047 |
oak anthracnose |
Apiognomonia errabunda |
|
| 5030049 |
oak anthracnose |
Apiognomonia errabunda |
|
| 5030050 |
oak anthracnose |
Apiognomonia errabunda |
|
| 5030057 |
oak anthracnose |
Apiognomonia errabunda |
|
| 5021065 |
chestnut blight or canker |
Cryphonectria parasitica |
|
| 5021066 |
chestnut blight or canker |
Cryphonectria parasitica |
|
| 5034094 |
oak anthracnose |
Apiognomonia errabunda |
|
| 5034096 |
oak anthracnose |
Apiognomonia errabunda |
|
| 2110062 |
oak anthracnose |
Apiognomonia errabunda |
spots on infected leaves; May 2001 |
| 0355023 |
sycamore anthracnose |
Apiognomonia veneta |
on twigs |