Bacterial Spot

Xanthomonas campestris pv. vesicatoria

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Symptoms:
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.

Control:
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.

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Publication Revised December 2008