noun Plant Pathology.
Origin of leaf spot
Examples from the Web for leaf spot
Mosaic disease, Frog-eye or Leaf-spot are probably bacterial diseases.Tobacco Leaves|W. A. Brennan
Carnations are subject to several diseases, the worst being the “rust” (Uromyces Caryophilinus), “leaf-spot” and maggot.
Thus we have "shot-hole fungus," "leaf-spot" and "leaf-blight" as effects of these diseases.The Cherries of New York|U. P. Hedrick
Mr. Durand: What is the best spray for leaf-spot and rust in strawberries?