Bacterial Spot
A bacterial disease of tomato caused by Xanthomonas species, affecting leaves and fruit.
Affected Plant
Tomato
Severity
Moderate
Symptoms
- Small, water-soaked leaf spots that turn dark brown to black
- Yellow halos around leaf spots
- Raised, scabby spots on fruit
Causes
- Spread by rain splash, contaminated seed, or tools
- Warm, humid weather favoring spread
Prevention
- Use certified disease-free seed and transplants
- Rotate crops
- Avoid overhead irrigation
- Avoid working with wet plants
Management
- Apply copper-based bactericides where appropriate, per local extension guidance
- Remove and dispose of infected plant debris
Related Tomato Diseases
Think your plant might have Bacterial Spot?
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Diagnose Your PlantDisclaimer: This is an AI-generated result and not a replacement for expert agronomic or plant-pathology diagnosis. Confidence scores reflect the model's certainty, not biological ground truth. The model was trained and evaluated on leaf photos captured under controlled, lab-like conditions, so accuracy on real-world field photos (cluttered backgrounds, variable lighting, multiple or overlapping leaves) may be lower than the reported evaluation metrics.