leaf spot
Americannoun
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a limited, often circular, discolored, diseased area on a leaf, usually including a central region of necrosis.
-
any disease so characterized.
noun
Etymology
Origin of leaf spot
First recorded in 1900–05
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A: This is viburnum leaf spot and it is quite common.
From Seattle Times ● Feb. 22, 2023
Other common ailments are Alternaria leaf spot, white mold, bean rust, and mosaic virus, which can be avoided by keeping leaves dry and trellising or pruning to allow maximum airflow between vines.
From Salon ● May 30, 2022
Bacterial leaf spot, or basil shoot blight, is a major uh-oh when it comes to pathogens.
From Salon ● May 18, 2022
Like early blight and Septoria leaf spot, anthracnose can also overwinter, so good garden hygiene and crop rotation are essential — as well as preemptive picking of fruit before it is overripe.
From Seattle Times ● Jul. 26, 2021
One is leaf spot caused by the fungus Marsonia, which defoliates the trees fairly early in the season and probably predisposes them to injury from other fungous attack.
From Northern Nut Growers Association Report of the Proceedings at the 41st Annual Meeting Pleasant Valley, New York, August 28, 29 and 30, 1950 by Northern Nut Growers Association
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
