How to Use downy mildew in a Sentence
downy mildew
noun-
Unlike black spot, downy mildew often starts at the top of the plant.
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Rita Perwich,
San Diego Union-Tribune,
2 May 2026
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Treat downy mildew by applying a fungicide to the leaves.
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Michelle Mastro,
Martha Stewart,
29 Apr. 2026
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Late-summer diseases include powdery and downy mildew, blight, leaf spot, and root rot.
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Mary Marlowe Leverette,
Southern Living,
15 Aug. 2025
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Look in seed catalogs and on seed packets for downy mildew resistance.
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Tom MacCubbin,
The Orlando Sentinel,
16 May 2026
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This native perennial thrives in full sun, where the foliage is less susceptible to downy mildew.
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Kim Toscano,
Southern Living,
3 July 2026
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The foliage is not susceptible to downy mildew, a common problem among impatiens.
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Kim Toscano,
Southern Living,
19 May 2026
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Another common spinach ailment is downy mildew, which causes yellow or light-green spots on the upper surface of the leaves and a white fungus on the lower surface.
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Michelle Mastro,
Martha Stewart,
29 Apr. 2026
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Natural pesticides offering some downy mildew control include need oils and copper fungicides.
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Tom MacCubbin,
The Orlando Sentinel,
16 May 2026
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New Guinea impatiens produce larger flowers on larger plants than traditional impatiens and have better resistance to downy mildew.
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Kim Toscano,
Southern Living,
2 May 2026
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Thin out seedlings to prevent overcrowding and space basil plants 6 to 10 inches apart with 18 to 24 inches between rows to provide good air circulation and prevent diseases like downy mildew and fusarium wilt.
—
Karen Brewer Grossman,
Southern Living,
10 Mar. 2026
Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'downy mildew.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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