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
However, these squashes can also be vulnerable to common plant diseases like powdery mildew or mosaic virus.
—
Samantha Johnson, Martha Stewart, 17 Apr. 2026
Insufficient sun exposure may also bring on disease since leaves wet for more than a few hours, even if the wetness comes from morning dew, are likely to develop powdery mildew.
—Joshua Siskin, Oc Register, 16 Apr. 2026
Fungicide applications can cure powdery mildew, leaf spot, and wilt.
—Mary Marlowe Leverette, Southern Living, 13 Apr. 2026
Possible diseases include powdery mildew, blight, crown rot, leaf gall, root rot, leaf spot, and rust.
—Mary Marlowe Leverette, The Spruce, 12 Mar. 2026
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Samantha Johnson, Martha Stewart, 17 Apr. 2026
Insufficient sun exposure may also bring on disease since leaves wet for more than a few hours, even if the wetness comes from morning dew, are likely to develop powdery mildew.
—Joshua Siskin, Oc Register, 16 Apr. 2026
Fungicide applications can cure powdery mildew, leaf spot, and wilt.
—Mary Marlowe Leverette, Southern Living, 13 Apr. 2026
Possible diseases include powdery mildew, blight, crown rot, leaf gall, root rot, leaf spot, and rust.
—Mary Marlowe Leverette, The Spruce, 12 Mar. 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 22 Apr. 2026.
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