Ash Anthracnose Caused by Discula fraxinea

Spot Anthracnose of Dogwood Caused by Elsinoe corni

Note the purplish spots on the flowers and leaves.

The disease also causes spots to form on the fruit.

Distribution of dogwood anthracnose in the southeastern U.S. 
Blue indicates counties which had reports of D. destructiva prior to 1998 
Red indicates counties which have reported D. destructiva since 1998

Spores of the fungus form in acervuli (left). 
             When mature they may be produced in a spore tendril (also called a cirrhus).
Click here for additional details on dogwood anthracnose.

Note the leaf spots and chlorosis on the leaves.

Sycamore Anthracnose Caused by Discula platani

Symptoms of this disease are defoliation and necrosis.
 

In addition to foliage symptoms, D. platani causes bud blasting and cankering on the stem.

Maple Anthracnose Caused by Aureobasidium apocryptum

Note the necrosis following the major veins into the center of the leaf.

Note the limited leaf spots and the chlorosis.  Defoliation is common. 
 

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This web site was prepared by Becky Bernard.
Last updated on 04 February 2008 by M.J. Munster