Definition of powdery mildew in English:

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powdery mildew

noun

Mildew on a plant that is marked by a white floury covering consisting of conidia. Compare with downy mildew.
Example sentences
  • The most common viticultural problems are downy mildew, powdery mildew, botrytis bunch rot, soil erosion, and occasional spring frost in the east of the country.
  • Both powdery mildew and downy mildew often infect squash plants as autumn nights grow cooler and dew keeps the foliage moist through the night.
  • The more common ones are powdery mildew, blackspot, downy mildew and rust.

For editors and proofreaders

Syllabification: pow·der·y mil·dew

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