- 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.
- 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
Pear-growers are plagued by two leaf-spots, one of which is also known as leaf-blight.The Pears of New York
U. P. Hedrick
Here at the West, it has proved a failure in most locations, being subject to leaf-blight, and a feeble grower.
This is, in dry seasons, a really fine grape, but subject to leaf-blight and mildew in hot seasons.
Subject in many locations, to leaf-blight, and is there a very slow grower.
Very productive, but subject to leaf-blight, mildew and rot; although perhaps not so much as the Catawba.