Black Spots on Green Tomatoes: Weather and Watering

Likely Causes

Black spots on green fruit in Northeast gardens often stem from:

• Anthracnose (fungal) – favored by wet, humid weather.
• Bacterial spot/speck – spread by splashing water.
• Blossom-end rot – if at bottom only.

Watering Adjustment

• Evening only (not morning + evening).
• Base watering – drip/soaker, never overhead.
• Mulch to reduce splash.
• Space plants for airflow.

Organic Treatment

• Copper soap (Soap Shield) weekly preventatively.
• Remove affected fruit immediately.
• Rotate nightshades yearly.

Weather Note

Dry spells often reduce spread naturally. Focus on cultural controls.