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.
Systemic fungicides labeled for leaf spot control seem to be somewhat effective. Tom MacCubbin, Orlando Sentinel, 1 Feb. 2025 The oldest stems, however, are also struggling, given they are affected by sooty bark canker, leaf spot and conk fungal disease. John Yoo and John Shu, Newsweek, 24 Jan. 2025 Plants are rather pest-resistant, though can be affected by leaf spots or rust on occasion. Kim Toscano, Southern Living, 19 Jan. 2025 This variety shows great resistance to bacterial leaf spot. Dawn Pettinelli, Hartford Courant, 18 Jan. 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

Dictionary Entries Near leaf spot

Cite this Entry

“Leaf spot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leaf%20spot. Accessed 7 Feb. 2025.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!