leaf curl

noun

: any of numerous plant diseases caused by ascomycetous fungi (genus Taphrina of the family Taphrinaceae) or viruses (especially genus Begomovirus of the family Geminiviridae) and characterized by curling of leaves
especially : peach leaf curl

Examples of leaf curl 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.
Little by little, the leaf curls over the insect, almost as if possessive, as the digestive process begins. Riley Black, Smithsonian Magazine, 6 June 2025 Peach leaf curl, which affects both peaches and nectarines, is a devastating fungus disease. Joshua Siskin, Orange County Register, 30 Jan. 2025 December • Peach leaf curl: Apply preventive spray once or more during late fall through bud break if leaf curl has been a problem on nectarine or peach. The San Diego Union Tribune, San Diego Union-Tribune, 11 Jan. 2025 Peppers growing indoors can also develop leaf curl and leaf drop if they’re kept too close to grow lights. Lauren Landers, Better Homes & Gardens, 20 July 2024

Word History

First Known Use

1850, in the meaning defined above

Time Traveler
The first known use of leaf curl was in 1850

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Cite this Entry

“Leaf curl.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leaf%20curl. Accessed 9 Sep. 2025.

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