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
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Prevent powdery mildew by improving light and airflow, and watering the soil—not leaves.
—
Rachel Gillett, Martha Stewart, 10 Feb. 2026
Providing ample shade and maintaining healthy soil can help prevent issues, including occasional damage from slugs and snails, root rot, and powdery mildew.
—Andy Wilcox, Better Homes & Gardens, 6 Feb. 2026
Other diseases that commonly affect hollies include leaf spots, root rots, and powdery mildew.
—Kim Toscano, Southern Living, 5 Feb. 2026
Growing plants vertically also increases air circulation and sun exposure, which helps plants grow better and can reduce the risk of powdery mildew and pests.
—Lauren Landers, The Spruce, 4 Feb. 2026
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Rachel Gillett, Martha Stewart, 10 Feb. 2026
Providing ample shade and maintaining healthy soil can help prevent issues, including occasional damage from slugs and snails, root rot, and powdery mildew.
—Andy Wilcox, Better Homes & Gardens, 6 Feb. 2026
Other diseases that commonly affect hollies include leaf spots, root rots, and powdery mildew.
—Kim Toscano, Southern Living, 5 Feb. 2026
Growing plants vertically also increases air circulation and sun exposure, which helps plants grow better and can reduce the risk of powdery mildew and pests.
—Lauren Landers, The Spruce, 4 Feb. 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 16 Feb. 2026.
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