Black banded disease

Black banded disease of mango, caused by Peziotrichum corticolum (Massee) Subramanian, is becoming severe for the last three to four years in all the mango growing regions. Morphological and cultural characteristics of the pathogen were studied. The identity of the fungus was confirmed. The fungus showed maximum radial growth on host extract dextrose agar on 12th day after incubation at 27±1oC. Culture of P. corticolum exhibited diversity with respect to cultural characters like type of the growth, mycelial colour, pigmentation and colony margin.

11p trinhthamhodang6 09-07-2020 11 1   Download

Among the tested five non-systemic, three combi- products, three systemic fungicides against Peziotrichum corticolum under laboratory condition, Bordeaux mixture, Copper oxychloride, Mancozeb, Carbendazim + Mancozeb, Hexaconazole + Zineb recorded maximum (100%) mean percent inhibition of P. corticolum, followed by Cuprous hydroxide (96.39%), Propiconazole (95.56%), Captan + Hexaconazole (86.39%), Difenconazole (80.74%), Hexaconazole (74.07%), Chlorothalonil (73.92%). Among the five plant extracts (botanicals), maximum mean percent inhibition of mycelial growth (22.

10p chauchaungayxua6 26-06-2020 18 1   Download

In an in vitro experiment, five fungicides viz., Mancozeb 75 % WP, Copper oxychloride 50% WP, Bordeaux mixture (1.0%), Sulphur80% WP, Difenoconazole 25% EC and Thiophanate methyl 70% WP were evaluated against tested pathogen at different concentration. Three botanicals viz., Azadirachta indica, Lantana camara and Polyalthia longifolia were tested against P. corticolum at 10 per cent concentration.

5p caygaocaolon2 11-03-2020 14 0   Download