Damage symptoms

A water-soaked lesion develops on the fruit lobe near the blossom end. The lesion dries, turns tan or brown, and becomes leathery in appearance. Fungi and bacteria may later invade the affected area, creating further rot.


Conditions for development

This disorder is caused by a calcium deficiency. It is also associated with low soil moisture, high temperatures, and excessive nitrogen fertilization.

Control

If soil is deficient in calcium, apply limestone to low pH soils or gypsum (calcium sulfate) to high pH soils. Proper water management and nitrogen fertilization will reduce the problem. Avoid cultivating near the plant since this can damage roots.