Field Evaluation of Insecticides Against Two Key Leaf Defoliators of Poplar

Four insecticides, viz., sevin 50 WP (carbaryl), dursban 20 EC (chlorpyriphos), thiodan 35 EC (endosulfan) and monocil 36 SL (monocrotophos) were tested at 0.05 and 0.1 % concentrations against poplar leaf webber and 0.05% concentration against bag worm. All the insecticides were significantly better than the untreated control. Single application of insecticide @ 0.05 % effectively managed the leaf webber, but to manage the bag worm, repeated applications of insecticides, based on density of pest population were required.