leaf spot

noun

: any of various plant diseases characterized by discolored often circular spots on the leaves

Examples of leaf spot in a Sentence

Recent Examples on the Web
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Fungicides, for instance, are used to suppress disease-causing pathogens like blights and leaf spots, but might also impact beneficial microbes that live in flowers. Miri Talabac, Baltimore Sun, 28 Apr. 2026 Sometimes a leaf spot can become bigger so pay attention to the cues from your plants. Lauren David, Southern Living, 25 Apr. 2026 Horvath says this hybrid is more resistant to rust and leaf spot diseases than other serviceberry trees. Tessa Cooper, The Spruce, 18 Apr. 2026 While leaf spots make azalea foliage look bad and many leaves are lost, the plants seem to make a recovery with good care. Tom MacCubbin, The Orlando Sentinel, 14 Mar. 2026 See All Example Sentences for leaf spot

Word History

First Known Use

circa 1846, in the meaning defined above

Time Traveler
The first known use of leaf spot was circa 1846

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Cite this Entry

“Leaf spot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leaf%20spot. Accessed 4 May. 2026.

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