In vitro evaluation of fungicides against Colletotrichum gloeosporioides causing fruit rot of custard apple

Abstract

The importance of fruits in human diet has been well recognized. Custard apple is one of major important fruit crop grown in Maharashtra. The indigenous fruits which are locally available in a particular season play a vital role in the nutrition of rural mass. Though, it was considered hardy and resistant to various pests and diseases, the losses caused by fruit rot of custard apple have been increased during recent years. Losses even up to 60-70% have been reported by previous workers. Fungicide use to control disease is a common practice. The present investigation was carried out to evaluate bio efficacy of fungicides, botanicals and bio agents against Colletotrichum gloeosporioides in vitro. Four systemic and two non-systemic fungicides were tested at three different concentrations in vitro against pathogen. Among these fungicides Copper oxychloride at all concentrations, Captan at half and recommended concentration and Fenamidon at recommended concentration inhibited cent per cent mycelial growth of the pathogen.