TOMATO               BACTERIAL SPOT Bacterial spot of tomato affects all aboveground parts of the plant.

	Symptoms:  Spots begin as shiny, circular, water-soaked lesions. Lesions later become dark and necrotic, and may coalesce to form long dark streaks. Photo by Plant Disease Clinic
	Symptoms: Fruit lesions are small, slightly raised and scablike. Photo by Plant Disease Clinic

General Information

Causal organism:	Xanthomonas campestris var. vesicatoria
Over wintering:	Plant debris, seed and volunteers
Months of infection:	May-August
Method of dispersal:	Infected seed, wind-driven rain
Infection point:	Infection occurs through stomates and wounds

Control Measures

Control:	Plant with clean seeds and eliminate volunteer plants.
Labeled fungicides	Copper based bactricides
Comments:	None

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This page is maintained by Janna L. Beckerman, Ph.D. and Elizabeth Wiggins

Department of Plant Pathology
495 Borlaug Hall
1991 Upper Buford Circle
St. Paul, MN 55108
Comments? Email to janna@umn.edu