Xanthomonas campestris pv. vesicatoria
Dark brown water soaked spots appear on the leaves; later these spots become blackish, and eventually the affected tissue drops out leaving a hole in the leaf. Black, raised specks that later become scab-like spots appear at the same time on fruit.
Crop rotations and careful transplant selection are important. Copper sprays provide some control. Good sanitation practices including prompt plow-down of stubble and weed control help prevent the disease.