Blossom End Rot

Blossom End Rot (BER) is a common problem affecting tomatoes, peppers, and some other crops. It occurs when the bottom end of the fruit, opposite the stem, develops a brown or black area that eventually becomes dry and sunken.

Main Causes

• Poor calcium availability in the fruit — this is often not because the soil lacks calcium, but because the plant is unable to transport enough calcium to the developing fruit.
• Irregular soil moisture — allowing the soil to become very dry and then applying too much water.
• Rapid plant growth.
• Damaged roots or poor root conditions.

How to Control Blossom End Rot

1. Water regularly to maintain consistent soil moisture.
2. Use mulch to help retain soil moisture.
3. Avoid heavy watering after the plant has been dry for a long period.
4. Conduct a soil test to determine calcium levels and soil pH.
5. Ensure healthy roots and good soil drainage.
6. Avoid excessive nitrogen fertilizer, especially when it causes very rapid leaf growth.

Important Note

Blossom End Rot is not a contagious disease that spreads from one plant to another. It is a physiological disorder mainly associated with calcium movement within the plant and inconsistent water management.