blister rust

American  

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.

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blister rust British  

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

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Etymology

Origin of blister rust

First recorded in 1915–20

Example Sentences

“We know how to find genetic resistance to white pine blister rust and there’s a number of whitebark pine trees that have it. They will be the foundation of a planting strategy,” she said.

From Washington Times • Dec. 14, 2022

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 • Mar. 11, 2022

Many have also been killed by white pine blister rust, a fungus introduced from Europe a century ago.

From Los Angeles Times • Nov. 18, 2019

Seedlings generally fight losing battles against thick forest over-stories and other competition, compounded by attacks from a non-native fungus called blister rust.

From Seattle Times • Mar. 26, 2018

Enemies: Sucking insects forming white downy patches on the bark and twigs, the white pine weevil, a boring insect, and the white pine blister rust, a fungus, are among its principal enemies.

From Studies of Trees by Levison, Jacob Joshua