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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 of chestnut blight
1905-10, Americanism Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for chestnut blight
  • 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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