Efficacy of various fungicides for the management of okra powdery mildew caused by Erysiphe cichoracearum DC

Abstract

Powdery mildew caused by Erysiphe cichoracearum DC is one of the major constraints in the production of okra. Farmers have to spray fungicides regularly for disease management. In order to find out the effective fungicides against Erysiphe cichoracearum experiment was carried out under in vivo. The relative efficacies of six different fungicides were tested in different concentration. Among the different fungicides, propiconazole (0.025%) was the most effective fungicide with 5.67 per cent disease intensity and maximum disease control of 76.46 per cent followed by wettable sulphur (0.2%). The highest yield of 93.25 q/ha was obtained in the treatment of propiconazole closely followed by wettable sulphur with 88.19 q/ha.