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powdery mildew
powdery mildew definition
☆ powdery mildew
- any of an order (Erysiphales) of ascomycetous fungi that are parasites on the surfaces of higher plants and produce closed fruiting bodies in a powdery mass
- a plant disease caused by a powdery mildew
Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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