Evaluation of fungicides for the control of powdery mildew disease in coriander (Coriandrum sativum L.)

Abstract

Six fungicides were evaluated at Raigarh (Chhattisgarh), for the control of powdery mildewdisease of coriander (Coriandrum sativum), caused by Erysiphe polygoni. All the fungicides  re-duced the disease severity significantly, over control, with maximum reduction inhexaconazole (0.1%) that was on par with propiconazole (0.1%) and wettable sulfur (0.3%).Yield of coriander was higher 2.54, 2.00 and 2.20 times, over control, in hexaconazole (0.1%),propiconazole (0.1%) and wettable sulfur (0.3%), respectively. Cost-benefit ratio was 1:5.3,1:4.0 and 1:4.5 in hexaconazole (0.1%), propiconazole (0.1%) and wettable sulfur (0.3%),respectively.