cedar-apple rust

noun
ce·dar-ap·ple rust | \ˈsē-dər-ˈa-pəl- \

Definition of cedar-apple rust 

: a gall-producing disease especially of the apple caused by a rust fungus (Gymnosporangium juniperi-virginianae) that completes the first part of its life cycle on the common red cedar (Juniperus virginiana) and the second on the leaves and fruit of the apple

Examples of cedar-apple rust in a Sentence

Recent Examples on the Web

The fungus that causes cedar-apple rust — so titled because some kinds of junipers are often erroneously called cedars — reproduces more readily in wet spring weather. Beth Botts, chicagotribune.com, "Orange growths on juniper trees signal cedar-apple rust," 30 May 2018 Wheat rust needs barberry to survive, cedar-apple rust needs both juniper and an apple relative, and white pine blister rust needs a susceptible member of the currant family. The Editors Of Organic Life, Good Housekeeping, "Grow Healthy Food By Identifying + Treating These Common Plant Diseases," 21 July 2015 Other Rusts Wheat rust, cedar-apple rust, and white pine blister rust require alternate hosts. The Editors Of Organic Life, Good Housekeeping, "Grow Healthy Food By Identifying + Treating These Common Plant Diseases," 21 July 2015

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cedar-apple rust.' 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 cedar-apple rust

1946, in the meaning defined above

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The first known use of cedar-apple rust was in 1946

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