Anthracnose
Anthracnose (Colletotrichum phomoides): At first, infected fruit show small, slightly sunken, water soaked spots. These spots enlarge, become darker in color, depressed and have concentric rings. Masses of the pink fruiting fungus can be seen on the surface of the lesions in moist weather. Under warm and humid conditions, the fungus penetrates the fruit, completely destroying it. The fungus persists on infected plant refuse in the soil. Fruit may be infected when green and small, but do not show any marked lesions until they begin to ripen. Fruit becomes more susceptible as they approach maturity.
Control: Control of this disease involves the use of well-drained soil, crop rotation and a preventative fungicide program is recommended.