leaf spot

noun

Definition of leaf spot

: 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 Crape myrtles have recently been recovering and sending out new growth and their last flush of flowers, but get ready to see another round of leaf spot. Dan Gill, NOLA.com, "Dan Gill explains how to mimimize landscape damage from the recent New Orleans-area heavy rains," 23 Sep. 2020 Redtip photinias are highly susceptible to a fatal fungal leaf spot (Entomosporium). Neil Sperry, ExpressNews.com, "Neil Sperry: Fasciated growth unhealthy in plants not born to it," 5 Nov. 2020 Cercospora leaf spot has largely defoliated a large portion of area crape myrtles due to rains in July. Dan Gill, NOLA.com, "Dan Gill explains how to mimimize landscape damage from the recent New Orleans-area heavy rains," 23 Sep. 2020 The culprit appears to be Pseudocercospora leaf spot, a fungus that is causing leaf blight. Kim Palmer, Star Tribune, "What's wrong with the lilacs? Beloved plants in Minnesota threatened by leaf fungus," 6 Oct. 2020 Sometimes crape myrtles have a fungal leaf spot problem during summer. Tom Maccubbin, orlandosentinel.com, "How to care for Knock Out roses," 29 Aug. 2020 Also, crape myrtle trees have shed lots of leaves due to Cercospora leaf spot recently during rainy weather. Dan Gill, NOLA.com, "Summer in the garden: Citrus splitting; plant staking and seed pods in your decor," 19 Aug. 2020 This is a fungal disease called Cercospora leaf spot. Dan Gill, NOLA.com, "Leaf fungus isn't pretty, but it won't kill your crape myrtles and spraying doesn't help," 12 Aug. 2020 What appears to be a fungal leaf spot is developing on our hydrangea plants. Tom Maccubbin, orlandosentinel.com, "How to improve sandy soil for gardening," 8 Aug. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'leaf spot.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of leaf spot

circa 1846, in the meaning defined above

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The first known use of leaf spot was circa 1846

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Statistics for leaf spot

Last Updated

2 Feb 2021

Cite this Entry

“Leaf spot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leaf%20spot. Accessed 25 Feb. 2021.

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