Definition of powdery mildew in English:

powdery mildew

Line breaks: pow|dery mil¦dew


[mass noun]
  • Mildew on a plant which is marked by a white floury covering consisting of conidia. Compare with downy mildew.
    • Family Erysiphaceae, subdivision Ascomycotina
    More 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.

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Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
elaborate ornamentation of a vocal melody