blister rust

noun

, Plant Pathology.

1. a disease, especially of white pines, characterized by cankers and in the spring by blisters on the stems, caused by a rust fungus of the genus Cronartium.

blister rust

noun

1. a disease of certain pines caused by rust fungi of the genus Cronartium , causing swellings on the bark from which orange masses of spores are released

Word History and Origins

Origin of blister rust¹

First recorded in 1915–20

Example Sentences

A nonnative fungus — white pine blister rust — has been killing whitebark pines for a century and they’ve been largely wiped out in areas.

From Seattle Times

A nonnative fungus - white pine blister rust - has been killing whitebark pines for a century and they’ve been largely wiped out in areas.

From Washington Times

But, in 1911, the federal government banned black currants, which carried white pine blister rust, a fungus that infected white pines and presented a threat to the timber industry.

From New York Times

Plus trees are adult, cone-bearing trees that have shown resistance to blister rust, noted Park vegetation biologist Dawn LaFleur.

From Washington Times

The nonprofit supports his exploration as it works to combat the effects of bark beetles and blister rust in Western forests.

From Washington Post