Field Efficacy Trial and Evaluation on Controlling Pseudoaulacaspis pentagona Targioni-Tozzetti with 6 Kinds of Pesticides

[Objective] The purpose of the study was to look for perfect conventional pesticides of controlling Pseudoaulacaspis pentagona targioni-tozzetti so as to provide scientific basis for controlling locally epidemic P.pentagona targioni-tozzetti.[Method] The field efficacy of every pesticide on controlling P.pentagona targioni-tozzetti was observed in the field efficacy trial with 9 treatments and 4 repetitions,and 6 chosen kinds of pesticides.[Result] The controlling effects of 26% Jiebisha emulsifiable concentrate(EC) diluted for 2 000～3 000 times and dilute solution of 5% beta-cypermethrin diluted for 2 000 times were more outstanding.The controlling effects of 20% fenpropathrin EC and 2.5% Chunshijiesang EC all diluted for 2 000 times were next.The controlling effects of locally common 3% Jinshiji EC and 48% Lesiben EC all diluted for 2 000 times were significantly lower than that of the above pesticides.[Conclusion] The better controlling effects against P.pentagona targioni-tozzetti could be obtained by conducting alternative application of 26% Jiebisha EC diluted for 2 000～3 000 times,5% high-active cypermethrin white aqueous emulsion diluted for 2 000 times,20% fenpropathrin EC and 2.5% Chunshijiesang EC all diluted for 2 000 times,48% Lesiben EC diluted for 2 000 times.