关键词: 湛江, 湛江

Abstract: In order to select efficient insecticides to control Psylla chinensis Yang et Li, ghe toxicity of insecticides to Psylla chinensis were tested using the residual film method, and the efficacy of composite reagents were tested at the same time. The results showed that: avermectins had highest toxicity to adults of Psylla chinensis, LC50 was 0.9877 mg/L; when the mixed mass ratio of abamectin and imidacloprid was 1:1, LC50 was 1.2145 mg/L; the field efficacy results showed that the mixed of abamectin and imidacloprid/acetamiprid had better control efficiency to adults and nymphs of Psylla chinensis, control efficiency were above 80% and 90% respectively after 10 days.