blister rust

blister rust

n.

Any of several diseases of pine trees caused by certain fungi of the genus Cronartium, resulting in conspicuous blistering and often dieback of affected areas.

Thesaurus

Noun	1.	blister rust - any of several diseases of pines caused by rust fungi of the genus Cronartium and marked by destructive invasion of bark and sapwood and producing blisters externally white pine blister rust, white-pine rust rust - a plant disease that produces a reddish-brown discoloration of leaves and stems; caused by various rust fungi
	2.	blister rust - fungus causing white pine blister rust and having a complex life cycle requiring a plant of genus Ribes as alternate host Cronartium ribicola rust fungus, rust - any of various fungi causing rust disease in plants Cronartium, genus Cronartium - rust fungi having aecia produced in raised or swollen sori and teliospores borne in waxy columns