Comparative efficacy of insecticides against major insect pests of rice in Punjab

Eight insecticide treatments, viz monocrotophos 36 SL, chlorpyriphos 20 EC, triazophos 40 EC, imidacloprid 200 SL, endosulfan 35 EC, Quinalphos 25 EC, methyl parathion 50 EC and cartap hydrochloride 4 G were evaluated for their efficacy against rice leaf folder Cnaphalocrocs medinalis (Guenee), yellow stem borer Scirpophaga incertulas (Walker) and whitebacked planthopper Sogatella furcifera (Horva