Seasonal incidence and management of yellow stem borer, Scirpophaga incertulas (walker) in rice

The results on the effect of different treatments alone and in combination showed that in terms of percent reduction of Scirpophaga incertulas over control, fipronil (15 kg/ha), monocrotophos (1.4 lt/ha), cholorpyrifos (0.5 lt/ha), fipronil + neem oil (7.5 kg/ha + 1 lt/ha), monocrotophos + neem oil (1.4 lt/ha), neem oil + soap (1 lt/ha + 0.5 kg/ha) and neem oil (2 lt/ha) were found superior. The incidence of Scirpophaga incertulas was observed during the 29th standard week till 38th standard week and the incidence had non-significant relationship with relative humidity evening, rainfall, wind velocity but significant relationship temperature, relative humidity morning and sunshine.