| 5430491 |
anthracnose |
Discula spp. |
Anthracnose symptoms on the upperside of a Norway maple leaf. |
| 5430489 |
anthracnose |
Discula spp. |
Anthracnose symptoms on the underside of a Norway maple leaf. |
| 5430471 |
ash anthracnose |
Gnomoniella fraxini |
Close-up of ash foliage showing necrosis due to anthracnose. |
| 5430479 |
dogwood anthracnose |
Discula destructiva |
Foliar symptoms of dogwood anthracnose. |
| 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. |
| 5405288 |
anthracnose |
Discula spp. |
Close-up of the upper surface of a leaf with large tan-brown blotchy area believed to be caused by a species of Discula. |
| 5405289 |
anthracnose |
Discula spp. |
Close-up of the upper surface of a leaf with large tan-brown blotchy area believed to be caused by a species of Discula. |
| 5405290 |
anthracnose |
Discula spp. |
Close-up of the lower surface of a blighted area of a leaf believed to be caused by a species of Discula. |
| 5405291 |
anthracnose |
Discula spp. |
Close-up of the lower surface of a blighted area of a leaf showing black dots ("acervuli") along the major veins believed to be of a species of Discula. |
| 5405292 |
anthracnose |
Discula spp. |
Close-up of the lower surface of a blighted area of a leaf showing black dots ("acervuli") along the major veins believed to be of a species of Discula. |
| 5405293 |
anthracnose |
Discula spp. |
Close-up of the lower surface of a blighted area of a leaf showing black dots ("acervuli") along the major veins believed to be of a species of Discula. |
| 5405294 |
anthracnose |
Discula spp. |
Lower surface of a blighted area of a leaf stained to show mycelium and acervuli along the major veins believed to be of a species of Discula. |
| 5405295 |
anthracnose |
Discula spp. |
Lower surface of a blighted area of a leaf stained to show mycelium and acervuli along the major veins believed to be of a species of Discula. |
| 5405296 |
anthracnose |
Discula spp. |
Close-up of a blighted area of a leaf stained to show an acervulus along a major vein believed to be of a species of Discula. |
| 5405297 |
anthracnose |
Discula spp. |
A single stained acervulus and several conidia believed to be of a species of Discula. |
| 5405298 |
anthracnose |
Discula spp. |
A single stained acervulus and several conidia believed to be of a species of Discula. |
| 5405359 |
leaf spot |
Tubakia dryina |
Pycnothyria and conidia of Tubakia dryina. |
| 5405360 |
leaf spot |
Tubakia dryina |
Pycnothyrium and conidia of Tubakia dryina. |
| 5405361 |
leaf spot |
Tubakia dryina |
Pycnothyrium and conidia of Tubakia dryina. |
| 5405362 |
leaf spot |
Tubakia dryina |
Conidia of Tubakia dryina. |
| 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. |
| 5385801 |
Phomopsis cankers and twig blights |
Phomopsis spp. |
Galls on Forsythia branches. See Diseases of Trees and Shrubs, 2nd ed. p. 148 |
| 5385802 |
Phomopsis cankers and twig blights |
Phomopsis spp. |
Galls on Forsythia branches. See Diseases of Trees and Shrubs, 2nd ed. p. 148 |
| 5385803 |
Phomopsis cankers and twig blights |
Phomopsis spp. |
Close-up of galls, See Diseases of Trees and Shrubs, 2nd ed. p. 148 |
| 5385804 |
Phomopsis cankers and twig blights |
Phomopsis spp. |
Asexual spore-producing bodies ("pycnidia") on galled tissue. See Diseases of Trees and Shrubs, 2nd ed. p. 148 |
| 5385805 |
Phomopsis cankers and twig blights |
Phomopsis spp. |
Asexual spore-producing bodies ("pycnidia") on galled tissue. See Diseases of Trees and Shrubs, 2nd ed. p. 148 |
| 5385806 |
Phomopsis cankers and twig blights |
Phomopsis spp. |
Asexual spore-producing bodies ("pycnidia") on galled tissue. See Diseases of Trees and Shrubs, 2nd ed. p. 148 |
| 5385807 |
Phomopsis cankers and twig blights |
Phomopsis spp. |
Dark-field observation of spore producing structure called "pycnidia". See Diseases of Trees and Shrubs, 2nd ed. p. 148 |
| 5385808 |
Phomopsis cankers and twig blights |
Phomopsis spp. |
Dark-field observation of one pycnidium |
| 5385809 |
Phomopsis cankers and twig blights |
Phomopsis spp. |
Spores ("conidia") oozing out of a pycnidium in a tendril-like mass |
| 5385810 |
Phomopsis cankers and twig blights |
Phomopsis spp. |
Spores ("conidia") oozing out of a pycnidium in a tendril-like mass |
| 5385811 |
Phomopsis cankers and twig blights |
Phomopsis spp. |
Close-up of spores ("conidia") in a tendril-like mass |
| 5385812 |
Phomopsis cankers and twig blights |
Phomopsis spp. |
Individual "alpha" spores of a Phomopsis species with measuring scale |
| 5385824 |
Phomopsis leaf blight and fruit rot |
Phomopsis obscurans |
Brown, blighted areas of strawberry leaves |
| 5385825 |
Phomopsis leaf blight and fruit rot |
Phomopsis obscurans |
Brown, blighted areas of a strawberry leaf |
| 5385826 |
Phomopsis leaf blight and fruit rot |
Phomopsis obscurans |
Brown, blighted areas of a strawberry leaf |
| 5385827 |
Phomopsis leaf blight and fruit rot |
Phomopsis obscurans |
A single, brown, blighted area of a leaf |
| 5385828 |
Phomopsis leaf blight and fruit rot |
Phomopsis obscurans |
Close-up of brown, blighted area with small, round, darker brown spore-producing bodies ("pycnidia") |
| 5385829 |
Phomopsis leaf blight and fruit rot |
Phomopsis obscurans |
Close-up of brown, blighted area with small, round, darker brown spore-producing bodies ("pycnidia") |
| 5385830 |
Phomopsis leaf blight and fruit rot |
Phomopsis obscurans |
Close-up of brown, blighted area with small, round, darker brown spore-producing bodies ("pycnidia") |
| 5385831 |
Phomopsis leaf blight and fruit rot |
Phomopsis obscurans |
Dark-field observation with several spore-producing bodies ("pycnidia") with a measurement scale |
| 5385832 |
Phomopsis leaf blight and fruit rot |
Phomopsis obscurans |
Dark-field observation with several spore-producing bodies ("pycnidia") with a measurement scale |
| 5385833 |
Phomopsis leaf blight and fruit rot |
Phomopsis obscurans |
Dark-field observation of one spore-producing body ("pycnidium") and asexual spores with a measurement scale |
| 5385834 |
Phomopsis leaf blight and fruit rot |
Phomopsis obscurans |
Dark-field observation of one spore-producing body ("pycnidium") and asexual spores with a measurement scale |
| 5385835 |
Phomopsis leaf blight and fruit rot |
Phomopsis obscurans |
Spores of the fungus Phomopsis obscurans with measurement scale. |
| 5368649 |
leaf spot |
Tubakia dryina |
One spore-producing body ("acervulus"). |
| 5368648 |
leaf spot |
Tubakia dryina |
Close-up of one spot on upperside of leaf with raised, dark, spore-producing bodies ("acervuli"). |
| 5368650 |
leaf spot |
Tubakia dryina |
|
| 5368647 |
leaf spot |
Tubakia dryina |
Tan/brown spots with broad, darker brown border. |
| 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. |
