cedar–apple rust

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

Definition of cedar–apple rust

  1. :  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


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