目的 研究不同剂型的氟虫腈制剂对蝇与蜚蠊的杀灭效果及使用剂量。方法 采用国标GB/T 13917.7－2009《农药登记用卫生杀虫剂室内药效试验及评价第7部分:饵剂》、GB/T 13917.10－2009《农药登记用卫生杀虫剂室内药效试验及评价第10部分:模拟现场》、GB/T 13917.1－2009《农药登记用卫生杀虫剂室内药效试验及评价第1部分:喷射剂》分别对不同剂型的氟虫腈制剂的杀灭效果进行检测并评价,并运用方差分析与t 检验对不同浓度、不同成分杀虫剂的杀灭效果进行比较。结果 3种不同厂家的2.5%氟虫腈悬浮剂对蜚蠊的药效达到国家A级标准;6种氟虫腈微乳剂对蝇的药效,除1家为不合格产品外,其他均分别达到国家A或B级标准,3%与6%氟虫腈微乳剂浓度组灭蝇效果差异无统计学意义(P > 0.05);0.05%氟虫腈灭蟑胶饵达到国家A级标准,与其他成分的灭蟑饵剂的杀灭效果差异亦无统计学意义(P > 0.05)。结论 氟虫腈杀虫剂灭蝇与蜚蠊效果良好,但在具体使用中,需降低使用浓度。

Objective To determine the efficacy and dosage of the different fipronil formulations against fly and cockroach. Methods GB/T 13917.1-2009 Laboratory efficacy test methods and criterions of public health insecticide for pesticide registration - Part 1: Spray fluid; GB/T 13917.7-2009 Laboratory efficacy test methods and criterions of public health insecticide for pesticide registration-Part 7: Bait and GB/T 13917.10-2009 Laboratory efficacy test methods and criterions of public health insecticide for pesticide registration-Part 10: Analogous site are adopted to test and evaluate the efficacy of the fipronil formulations. One-way ANOVA and Independent-Samples t test are adopted for the comparison of the efficacy of the different groups. Results Three kinds of 2.5% fipronil flowable concentrates from different factories belong to rank A according to the national standard. Among the six different fipronil micro-emulsions, five of them belong to the rank A and B. There is no significant difference between 3% and 6% fipronil micro-emulsions on the efficacy against fly (P > 0.05). The 0.05% cockroach bait belong to the rank A, which has no significant difference with other baits (P > 0.05). Conclusion Different fipronil formulations have high efficacy against fly and cockroach, but should be used in lower dose.