sooty mold


: 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 Often, leaves covered in powdery, black sooty mold is your first clue to these pests in citrus. Nan Sterman, San Diego Union-Tribune, 2 Mar. 2024 When needed, an insecticidal soap or horticultural oil spray can be applied following label instructions to get these pests under control and cause the sooty mold to slough off. Tom MacCubbin, Orlando Sentinel, 22 Apr. 2023 Granted, high levels of honeydew (sugar-water waste) produced by abundant numbers of the pest can foster heavy layers of sooty mold that can shade leaves, but on deciduous plants, this effect is only temporary. Miri Talabac, Baltimore Sun, 10 Aug. 2023 The sticky matter is food for a sooty mold fungus producing the black coating. Tom MacCubbin, Orlando Sentinel, 29 Apr. 2023 Control of the insects takes time and the sooty mold slowly sloughs off the leaves. Tom MacCubbin,, 10 Oct. 2020 The honeydew can sometimes encourage a fungal growth called sooty mold, causing branches and leaves to appear black. Kate McGregor, House Beautiful, 28 July 2023 The black, sooty mold is another clue that there is an insect problem in your garden. Tim Johnson, Chicago Tribune, 9 July 2023 But where there was one invader, said Mike Philip, there are surely thousands more, threatening our grape crops, decks and cars while excreting a sugary water called honeydew that turns into a nasty black fungus called sooty mold. Detroit Free Press, 14 May 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'sooty mold.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1901, in the meaning defined above

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

Dictionary Entries Near sooty mold

Cite this Entry

“Sooty mold.” Dictionary, Merriam-Webster, Accessed 25 Apr. 2024.

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