Defoliation starts at the bottom of the plant and works up. Occasionally, flowers may be killed. The green or ripe fruit may have a black, leathery stem-end rot. The fruit may develop a lop-sided shape and the small side may ripen slower than the fully expanded side. Identification of Disease.
Fungal growth is seen on undersides of leaves only.
The color of the fungal growth is unusual, especially the deeper color in center. Keep temperature at least 60 o to 65 o F throughout the season. At night, keep the greenhouse temperature warmer than the outside temperature. Avoid wetting leaves, and allow to dry before night. Use adequate plant spacing and fans to ensure good air circulation and leaf drying.