1. Introduction
Banana is a perishable fruit and the fruit quality deteriorates very rapidly after harvest. The short storage life is the major problem associated with the export of banana over long distances. Postharvest diseases, especially crown rot caused by complex of Lasiodiplodia theobromae (Pat.) Griffon and Maubl, Colletotrichum musae (Berk and Curtis) Arx and Fusarium spp., greatly reduces the storage life of bananas in almost all banana-producing countries (Paull et al., 1998). Crown rot disease symptoms first appear on the cut surface of the crescent-shaped crown and the infected tissues become black and soft. Grayish-white hyphal growth appears on the surface of the decaying tissue. Further, this disease decreases the quality of bananas, with damage and drop of fingers.