leaf blight

noun Plant Pathology.
  1. a symptom or phase of many diseases of plants, characterized by necrotic spots or streaks on the leaves, accompanied by seed rot and seedling blight.
  2. any disease so characterized.

Origin of leaf blight

First recorded in 1840–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for leaf blight

Historical Examples of leaf blight