cedar-apple rust

noun

ce·​dar-ap·​ple rust ˈsē-dər-ˈa-pəl- 

: 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, 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, 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, 21 July 2015

Word History

First Known Use

1946, in the meaning defined above