black spot of elm

 Diseases: Foliage Diseases
Sordariomycetes > Diaporthales > Gnomoniaceae > Stegophora ulmea (Fr.) Syd. & P. Syd.

4 records

 

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Image Descriptor Description Photographer
5368938 Sign

Close-up of infected spots with blister-like, brown spore-producing bodies ("acervuli") within the spots.

 Paul Bachi
5368939 Sign

Close-up of infected spots with blister-like, brown spore-producing bodies ("acervuli") within the spots.

 Paul Bachi
5368940 Sign

Close-up of one infected spot with blister-like, brown spore-producing bodies ("acervuli") seen under dark-field observation.

 Paul Bachi
5368937 Symptoms

Leaves with small, raised black spots with a fine area of white tissue surrounding them, found mostly between the major veins.

 Paul Bachi


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