Monroe County

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Blossom-End Rot Frustrates Tomato Growers

August 19, 2020
Variety of Blossom End-Rot on Tomatoes

Variable symptoms of blossom-end rot on tomato Credit: Tom Creswell, Purdue Extension

Eager tomato growers, having lovingly nurtured their plants, anxiously await their ripe gems. But alas, a black, leathery spot appears at the base of the fruit.

Blossom end-rot is thankfully not an infectious disease, but rather a frustrating disorder of the fruit. The black scar tissue is thought to be caused by a deficiency of calcium in the developing fruit.

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