Have you noticed tomato fruit that looks rotten on the bottom? Tomato Rots On Bottom – Identifying Tomato Plants With Blossom Rot.
A. When the bottom side of the tomato (either a green or ripened one) develops. Pick affected and unaffected fruit on BER plants to reduce stress on the plant.
A water-soaked spot at the blossom end of tomato fruits is the classic symptom of disorder caused by a calcium imbalance within the plant.