湖北林业科技

Indoor and field tests of mixture of 8 000 IU/mg Bt insecticide with different contents of abamectin for control of D.punctatus Walker were reported by the authors. It showed that the control effects by 7 days after the spraying were all higher than 90.0% with different contents of abamectin and dilutions. By considering the!cost of the pesticide and application, the authors recommended to use mixture of 8 000 IU/mg Bt insecticide with 0.5% avermectins at dilution of 3 200X for control of D. punctatus Walker.