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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Why People Remove the Lower Leaves The main reason why growers remove the lowest leaves from tomato plants is to reduce the risk of pests and common diseases like blight, wilt, and leaf spot. Lauren Landers, The Spruce, 9 June 2026 Potential diseases include anthracnose, which begins as round, brown leaf spots with a red or purple ring. Steve Bender, Southern Living, 9 June 2026 The most common is the cercospora leaf spot that starts to affect azalea foliage during summer. Tom MacCubbin, The Orlando Sentinel, 23 May 2026 Fungal diseases: In humid conditions or when air circulation is poor, pawpaw leaves can develop fungal leaf spot. Rae Ford, Martha Stewart, 17 May 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 13 Jun. 2026.

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