Fruit rot: Dry rot around the calyx
Pathogen: Colletotrichum sp.
Symptoms
Dark brown fast spreading dry rot generally starting from calyx end and spreading towards stem end of fruit with rusty appearance below skin.
Disease development
Fungal infections begin most commonly in the orchard following rain during flowering and early fruit development. Colonization by fungus is often associated with insect infestations, such as feeding by hemipterans, or other factors that cause fruit injury or cracking e.g., bird pecking, sunburn etc.
Control
The disease can be controlled by spraying of Bavistin (0.5%), Dithane M-45 (0.25%) or Dithane Z-78 (0.25%) at an interval of 10-15 days from the onset of flowering.