sooty mold

noun

Definition of 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

When sprayed, the sooty mold fungus slowly sloughs off the tree portions. — Tom Maccubbin, orlandosentinel.com, "It’s a puzzle figuring out when to pick avocados," 6 July 2019 The sprays can also help loosen and remove the sooty mold. — Tom Maccubbin, orlandosentinel.com, "Easter lily bulbs can be left in container or transplanted," 29 June 2019 With time, the sap oozes down the bark and eventually turns black because it is colonized by an ever present fungus with the very appropriate name of sooty mold. — oregonlive.com, "Ask an Expert: Selectively thin branches, rather than ‘top’ a Raywood ash," 14 June 2019 The owner keeps it pruned and inoculated against beech-blight aphids (Grylloprociphilus imbricator) that also encourage a fungus, a sooty mold (Scorias spongiosa). — C.d. Wright, Harper's magazine, "Life’s a Beech," 10 Jan. 2019 Aphids suck plant sap, causing foliage to distort and leaves to drop; honeydew excreted on leaves supports sooty mold growth; and feeding spreads viral diseases. — The Editors, Good Housekeeping, "The 10 Most Destructive Garden Insects and How to Get Rid of Them," 10 July 2018 Aphids suck plant sap, causing foliage to distort and leaves to drop; honeydew excreted on leaves supports sooty mold growth; and feeding spreads viral diseases. — The Editors, Good Housekeeping, "The 10 Most Destructive Garden Insects and How to Get Rid of Them," 10 July 2018 Aphids suck plant sap, causing foliage to distort and leaves to drop; honeydew excreted on leaves supports sooty mold growth; and feeding spreads viral diseases. — The Editors, Good Housekeeping, "The 10 Most Destructive Garden Insects and How to Get Rid of Them," 10 July 2018 Aphids suck plant sap, causing foliage to distort and leaves to drop; honeydew excreted on leaves supports sooty mold growth; and feeding spreads viral diseases. — The Editors, Good Housekeeping, "The 10 Most Destructive Garden Insects and How to Get Rid of Them," 10 July 2018

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

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Last Updated

6 Aug 2019

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The first known use of sooty mold was in 1901

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