cedar-apple rust definition

  • noun:
    • an illness due to a rust fungi (Gymnosporangium juniperi-virginianae) that uses section of its life pattern on particular junipers, causing galls and twig dieback, and remainder of its life pattern on vulnerable apples or crab oranges, causing lesions and early shedding of leaves or fresh fruit.
    • corrosion fungus causing rust places on apples and pears etc

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  • Hypernym for "cedar-apple rust"
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