I have six tomato plants. They have been growing great with what was looking...

Asked July 16, 2014, 12:04 AM EDT

I have six tomato plants. They have been growing great with what was looking like lots of tomatoes. However, as the tomatoes ripen there is a gray/black rot on the bottom of most of the tomatoes. The tomatoes are small and rotting from the bottom. It looks like I will not get much yield after all. What causes this and what should I do about it?

Worcester County Maryland vegetables blossom end rot

1 Response

You are most likely referring to blossom end rot. The bottom (blossom) end of the fruit bottoms becomes brown and rotted. Promptly remove any fruits that have blossom-end rot or are badly malformed. This nutritional disorder is caused by a lack of calcium in developing fruits and is brought on by dry conditions and inconsistent watering. Water your plants deeply and regularly and keep them mulched. Tomato plants may need 1-2 gallons of water each at least twice a week during droughty periods. Plants tend to grow out of the problem.
See our publication for tips on reducing blossom end rot http://extension.umd.edu/sites/default/files/_images/programs/hgic/Publications/HG56%20IPM%20Tomatoe...
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