sooty mold

noun

: a dark growth of fungus mycelium growing in insect honeydew on plants
also : any of various ascomycetous fungi (order Dothideales) producing such growth

Examples of sooty mold in a Sentence

Recent Examples on the Web
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Any sooty mold and the shiny leaves from the honeydew produced by the scales should gradually disappear. Tim Johnson, Chicago Tribune, 13 July 2025 Check the undersides of foliage, where aphids hide, and keep an eye out for sooty mold. Arricca Elin Sansone, Southern Living, 12 July 2025 One natural solution to whiteflies and the sooty mold fungus is a horticultural oil spray found at your local garden center. Tom MacCubbin, The Orlando Sentinel, 5 July 2025 Aphids excrete honeydew, a sticky substance that attracts ants, and that can lead to a buildup of sooty mold, a type of fungus that interferes with a plant’s ability to photosynthesize. Arricca Elin Sansone, Southern Living, 25 June 2025 See All Example Sentences for sooty mold

Word History

First Known Use

1901, in the meaning defined above

Time Traveler
The first known use of sooty mold was in 1901

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Cite this Entry

“Sooty mold.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sooty%20mold. Accessed 29 Jul. 2025.

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