powdery mildew

noun
Updated on: 20 Apr 2018

Definition of powdery mildew

1 : an ascomycetous fungus (family Erysiphaceae) producing abundant powdery conidia on the host
2 : a plant disease caused by a powdery mildew

Recent Examples of powdery mildew from the Web

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First Known Use of powdery mildew

1889

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in the meaning defined at sense 1

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