Tomato Leaf Spots
Early blight, caused by the fungus Alternaria, and Septoria leaf spot, caused by the fungus Septoria, are
two destructive tomato diseases which occur each year in the northeastern United States. Both fungi
attack foliage, killing the leaves, weakening the plant and ultimately reducing fruit production.
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Creator: William C. Woodbridge, Gary W. Moorman, Robert J. Precheur, George Hochmuth