powdery mildew
noun
1
: an ascomycetous fungus (family Erysiphaceae) producing abundant powdery conidia on the host
2
: a plant disease caused by a powdery mildew
Examples of powdery mildew in a Sentence
Recent Examples on the Web
Bee balm loves moisture but is susceptible to powdery mildew, so choose a variety that is resistant.
—
Arricca Elin Sansone, Southern Living, 20 June 2025
Wet foliage can increase fungal and bacterial diseases such as leaf spot or powdery mildew.
—Leanne Potts, Better Homes & Gardens, 15 June 2025
Plant diseases, like powdery mildew, spread more readily during summer.
—Lauren Landers, Better Homes & Gardens, 9 June 2025
Those without leaves store water in their stems.) Check the plants for disease and infestations, including mealy bugs, which look like a cottony, white substance, and powdery mildew, which initially appears as white circles on leaves and stems.
—The Washington Post, San Diego Union-Tribune, 31 May 2025
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Arricca Elin Sansone, Southern Living, 20 June 2025
Wet foliage can increase fungal and bacterial diseases such as leaf spot or powdery mildew.
—Leanne Potts, Better Homes & Gardens, 15 June 2025
Plant diseases, like powdery mildew, spread more readily during summer.
—Lauren Landers, Better Homes & Gardens, 9 June 2025
Those without leaves store water in their stems.) Check the plants for disease and infestations, including mealy bugs, which look like a cottony, white substance, and powdery mildew, which initially appears as white circles on leaves and stems.
—The Washington Post, San Diego Union-Tribune, 31 May 2025
See All Example Sentences for powdery mildew
Cite this Entry
“Powdery mildew.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/powdery%20mildew. Accessed 5 Jul. 2025.
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