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Spring Blackstem

Leaf symptoms of spring black stem

Stem symptoms of spring black stem

Spring black stem lesion on petiole

 

Iowa State University

 

Entomology Image Gallery > Plant Diseases and Damage > Alfalfa > Spring Blackstem


Stem symptoms of spring black stem

Stem symptoms of spring black stem.

Stem symptoms of spring black stem

This image appears in the following articles:

Spring alfalfa diseases in 2002 (May, 2002)
Spring alfalfa leaf diseases in 2001 (April, 2001)
Alfalfa leaf diseases appearing (May, 1999)
Alfalfa leaf diseases reported (May, 1998)
Alfalfa leaf diseases update (May, 1997)


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Iowa State University Entomology Department. Last modified May 30, 2002 by John VanDyk.