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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Wet foliage can increase fungal and bacterial diseases such as leaf spot or powdery mildew. Leanne Potts, Better Homes & Gardens, 15 June 2025 No water touches the leaves with this method, which is good for plants prone to leaf spot, crown rot, or other fungal diseases. Leanne Potts, Better Homes & Gardens, 15 June 2025 Sometimes a leaf spot can become bigger so pay attention to the cues from your plants. Lauren David, Southern Living, 31 May 2025 Fungicide applications can cure powdery mildew, leaf spot, and wilt. Mary Marlowe Leverette, Southern Living, 7 May 2025 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 19 Jul. 2025.

Last Updated: - Updated example sentences
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