leaf blight

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

But this tree or shrub is so subject to the attacks of a leaf-blight that the culture has decreased.

Northern California, Oregon, and the Sandwich Islands |Charles Nordhoff
Here at the West, it has proved a failure in most locations, being subject to leaf-blight, and a feeble grower.

The Cultivation of The Native Grape, and Manufacture of American Wines |George Husmann
Subject in many locations, to leaf-blight, and is there a very slow grower.

The Cultivation of The Native Grape, and Manufacture of American Wines |George Husmann
Leaf-blight is readily controlled by timely spraying with Bordeaux mixture.

The Practical Garden-Book |C. E. Hunn

Thus we have "shot-hole fungus," "leaf-spot" and "leaf-blight" as effects of these diseases.

The Cherries of New York |U. P. Hedrick