Efficacy of some insecticides for control of aphid Chaitophorus populeti panzer on white poplar

Abstract

Aphid Chaitophorus populeti Panzer is a significant pest in poplar nurseries and young poplar plantations in Serbia. Harmful impact is very expressed on white poplars due to their hairy abaxial leaf side which accumulates honeydew what creates conditions for development of sooty molds. Application of insecticides is inevitable measure in the period of high population levels of these aphids. The aim of this research was to test insecticide efficacy in control of C. populeti. The experiment was established in the nursery on one-year old seedlings of white poplars with one date application on 20th May 2013. Tested insecticides were bifenthrin (conc. 0.05%), thiacloprid (conc. 0.015%) and thiamethoxam (conc. 0.02%). Efficacy of insecticides was calculated by Henderson-Tilton's formula. Results showed that tested insecticides has high efficacy in suppression of C. populeti, what presents recommendation for application against this insect.