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late blight

noun, Plant Pathology.
a disease of plants, especially potatoes, celery, etc., characterized by spotting, blighting, and withering or decay of the entire plant, caused by any of several fungi, as Phytophthora infestans or Septoria apii.
Origin of late blight
First recorded in 1900-05 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for late blight
Historical Examples
  • The late blight, which also attacks the foliage, is far more serious.

  • late blight (Phytophthora infestans) is the same fungus as the late blight of potatoes, affecting both foliage and fruit.

    The Tomato Paul Work
late blight in Science
late blight
A disease of potato plants caused by the oomycete organism Phytophthora infestans and characterized by decay of the foliage and tubers. An outbreak of late blight led to widespread famine in Ireland in 1845-1850.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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