Definition of white pine blister rust in US English:

white pine blister rust

noun

  • (Also "white pine blister") a rust disease causing canker formation and death of Pinus strobus and other white pines, caused by the heteroecious basidiomycete fungus Cronartium ribicola, the intermediate hosts of which are currants and gooseberries (genus Ribes).

Origin

Early 20th century; earliest use found in Forestry Quarterly.