chestnut blight

noun Plant Pathology.
a disease of chestnuts, especially the American chestnut, characterized by bark lesions that girdle and eventually kill the tree, caused by a fungus, Endothia parasitica.

Origin:
1905–10, Americanism

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Example sentences
Non-native plant diseases include dogwood anthracnose, sycamore anthracnose, and chestnut blight.
The threat of chestnut blight often deters this decision by land managers.
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