Michigan State University Extension
Ornamental Plants plus Version 2.0 - 00000067
01/01/98

AGAVE DISEASE PROBLEMS

Anthracnose causes circular, depressed, dark colored spots  
which can be up to an inch in diameter.  The spots are      
bordered by a raised ring and may run together and destroy  
the whole leaf.  Remove and destroy infected leaves.        

Symptoms of leaf spot are zoned, light gray spots up to an  
inch or more in diameter.  The spots have concentric rings  
in which black pimple-like fruiting bodies form.  Large     
portions of leaves may be destroyed.  Remove and destroy    
infected leaves.  No chemical control is listed.  Leaf      
blight can destroy the leaves of over-watered or chilled    
plants.                                                     

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