Evaluation of Botanicals against Powdery Mildew (Oidium mangiferae Berthet) of Mango (Mangifera indica L.)

Mango (Mangifera indica L.) belongs to the family Anacardiaceae and is a native of the Indo-Burma (now Myanmar) region. The fungal diseases occur in higher proportions leading to huge economic losses for the growers. Out of various fungal diseases, powdery mildew (O. mangiferae) is the most destructive malady encountering almost all the commercial cultivars. In the present study total eight botanicals were tested against powdery mildew under field. Minimum powdery mildew severity (10.83 %) and maximum disease reduction (76.67 %) over control were recorded in treatment with Neem leaf extract at 10 per cent concentration. The next best treatment was Garlic clove extract at 10 per cent concentration which was found on par with Onion bulb extract, Zinger clove extract and Turmeric rhizome extract in per cent disease severity and per cent disease reduction respectively.