Effect of Selected Botanicals and Carbendazim on Alternaria Blight Disease (Alternaria brassicae) of Mustard (Brassica juncea L.)

Abstract

Mustard is an important oilseed crop in India. Alternaria leaf blight caused by Alternaria brassicae is an economically important disease of oilseeds. It reduces the quality and quantity of the seeds. To evaluates selected botanicals and carbendazim for the management of Alternaria blight (Alternaria brassicae) of Indian mustard (Brassica juncea L.) by applying of foliar spray of botanical and seed treatment of carbendazim. The disease intensity (%), yield (q/ha), and cost benefit ratio were recorded. The minimum disease intensity (%) at 75 and 90 day after sowing was recorded on neem leaf extract + carbendazim (31.72) and (35.63) followed by lantana leaf extract+ carbendazim (33.54) and (38.72) as compared with the control (T0). The maximum yield (q/ha) was recorded (13.07q/ha) and cost benefit (1:1.85) neem leaf extract followed by lantana leaf extract + carbendazim as compared to untreated check(T0). This study will helpful for farmers those are shifting to organic farming as well as researchers to find out potent natural fungicides.