
Target Spot
A fungal disease of tomato caused by Corynespora cassiicola, producing lesions similar in appearance to early blight.
Affected Plant
Tomato
Severity
Moderate
Symptoms
- Brown, concentric-ringed lesions on leaves
- Lesions may also appear on stems and fruit
Causes
- Favored by warm, humid conditions
- Spread by rain splash and wind
Prevention
- Rotate crops
- Practice garden sanitation
- Choose resistant varieties where available
- Avoid overhead irrigation
Management
- Apply fungicide per local extension guidance
Related Tomato Diseases
Think your plant might have Target Spot?
Upload a photo of the affected leaf and get an instant AI diagnosis with a Grad-CAM explanation of what the model saw.
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.



