yellow leaf blotch

yellow leaf blotch

[′yel·ō ′lēf ‚bläch]

(plant pathology)

A fungus disease of alfalfa caused by Pyrenopeziza medicaginis characterized by the appearance of yellow or orange blotches with small black dots on the foliage.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.