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
The plants are susceptible to Botrytis mold and powdery mildew as well as crown and root rot.
—
Brandee Gruener, Southern Living, 3 June 2026
Water that sits can encourage fungal diseases, like powdery mildew.
—Madeline Buiano, Martha Stewart, 2 June 2026
Minimize powdery mildew and other issues by watering in the morning, and from below, not overhead, if possible.
—Andy Wilcox, Better Homes & Gardens, 31 May 2026
Examples of lawn fungus diseases include brown patch (Rhizoctonia), red thread (Laetisaria fuciformis), gray snow mold (Typhula incarnata and Typhula ishikariensis), pink snow mold (Microdochium nivale), and powdery mildew (Erysiphaceae family).
—David Beaulieu, The Spruce, 28 May 2026
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Brandee Gruener, Southern Living, 3 June 2026
Water that sits can encourage fungal diseases, like powdery mildew.
—Madeline Buiano, Martha Stewart, 2 June 2026
Minimize powdery mildew and other issues by watering in the morning, and from below, not overhead, if possible.
—Andy Wilcox, Better Homes & Gardens, 31 May 2026
Examples of lawn fungus diseases include brown patch (Rhizoctonia), red thread (Laetisaria fuciformis), gray snow mold (Typhula incarnata and Typhula ishikariensis), pink snow mold (Microdochium nivale), and powdery mildew (Erysiphaceae family).
—David Beaulieu, The Spruce, 28 May 2026
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 14 Jun. 2026.
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