关键词: 奋斗呐, 悬浮剂, 生物效果, 卫生害虫

Abstract: It is reported the observations on the efficacy of 1.5% sttspension concentration of alphacypermethrin(SC)against moquito, housefly and cockroach in the laboratory and field. The surfaces of four kinds of building material, glass, cement, lime and painted-board were treated with the SC and stored at a constant temperature of 50℃ in laboratory. The values of KT₅₀ of the first three materials at the dosage of 10 mg ai/m² were 4.37～8.32 and 4.33～5.90 minute within 4 weeks for Cx. quihquefasciatus and M. domestica respectively with 100% 24 hoursmortality and the values of KT₅₀ at the dosage of 15 mg a·i/m² were 7.77～22.71 minute within 4 weeks for P. americana with 100% 72 hours mortality. The efficacy of the last material was lower than that of the three. The densities of mosquitoes, houseflies, cockroaches decreased by 98.70, 97.80 and 99.9% respectively in the field trial one day aftertreated with SC at the dosage of 15～30 mg·ai/m² and decreased by 85.80, 90.30 and 100% respectively after 2 months. The advantages of alphacypermethrin 1.5 SC were little irritation and dust and convenience for use.