Isolation and in vitro evaluation of fungicides against Pestalotiopsis mangiferae causing grey blight of mango

Abstract

The present investigation entitled “Isolation and in vitro evaluation of fungicides against Pestalotiopsis mangiferae causing grey blight of mango” was under taken to evaluate for various management studies of the given test fungus. The diseased samples were collected from different localities of Uttarkhandi.e Dehradun, Haridwar and Rishikesh during the 2019-20. The pathogen was isolated from the diseased samples and the pathogen was maintained in potato dextrose agar. The potential species of Pestalotiopsis mangiferae was identified and isolated. In vitro evaluation of fungicides were tested. The data regarding the growth inhibition by three fungicides in which (viz., two systemic and one non-systemic) are as follows, among Systemic fungicides were found more inhibitory as compared to non-systemic fungicides even at equal levels of concentration against the pathogen. The data regarding the growth inhibition by two systemic and one non-systemic are as follows, among the systemic fungicide, Carbendazim and Mancozeb shows high efficacious, copper oxychloride has poor inhibiting capacity.