聚二甲基硅氧烷水膜对3种蚊虫的实验室控制效果研究  

Laboratory efficacy of polydimethylsiloxane liquid film against three mosquito species

作　　者：张铭洧 段金花[2] 邓惠[2] 芦瑞鹏 陈宗晶 林立丰 ZHANG Ming-wei;DUAN Jin-hua;DENG Hui;LU Rui-peng;CHEN Zong-jing;LIN Li-feng(School of Public Health,Southern Medical University,Guangzhou,Guangdong 510515,China;Institute of Disinfection and Vector Control,Guangdong Provincial Center for Disease Control and Prevention,Guangzhou,Guangdong 511430,China)

机构地区：[1]南方医科大学公共卫生学院,广东广州510515 [2]广东省疾病预防控制中心消毒与病媒生物预防控制所,广东广州511430

出　　处：《中国媒介生物学及控制杂志》2024年第2期133-137,共5页Chinese Journal of Vector Biology and Control

基　　金：广东省医学科研基金项目(B2022330)。

摘　　要：目的评价和比较实验室条件下聚二甲基硅氧烷水膜对致倦库蚊、白纹伊蚊、埃及伊蚊不同龄期幼虫和蛹的防治效果。方法挑选不同龄期的幼虫和蛹各30只,分别置于1 ml/m^(2)水膜的水体中,在实验室环境或人工培养箱设置的不同温度下观察幼虫或蛹的生长、发育及死亡情况,通过Excel 2016和SPSS 27.0软件进行数据的整理和分析,通过log-rank检验比较各组幼虫或蛹接触水膜后的生存曲线,采用独立样本t检验比较不同组的幼虫长度。结果在1 ml/m^(2)的水膜作用下,致倦库蚊、白纹伊蚊和埃及伊蚊Ⅰ~Ⅱ龄幼虫的半数致死时间分别为2.67、7.04和6.45 d,Ⅲ~Ⅳ龄幼虫分别为0.53、1.64和1.71 d,蛹分别为96.68、115.54和109.77 min;饲养7 d后,致倦库蚊、白纹伊蚊和埃及伊蚊水膜组平均虫体长度分别为(3.28±0.40)、(3.17±0.61)和(3.21±0.47)mm,明显小于相应的对照组(均P<0.001);在20、25、30和35℃下水膜组幼虫的死亡率随温度的升高而升高,致倦库蚊第1天的死亡率分别为66.67%、71.11%、91.11%和100%,白纹伊蚊分别为8.89%、30.00%、55.56%和81.11%,埃及伊蚊分别为14.44%、25.56%、56.67%和75.56%。结论聚二甲基硅氧烷水膜对3种蚊幼虫及蛹均有较好的控制效果,可抑制幼蚊的生长发育,同时环境温度的升高对水膜的功效有促进作用,适合于多种蚊虫的防控。Objective To evaluate and compare the efficacy of polydimethylsiloxane liquid film against the larvae and pupae of Culex pipiens quinquefasciatus,Aedes albopictus,and Ae.aegypti at different instars under laboratory conditions.Methods Thirty samples each of larvae of different instars and pupae were selected and placed in water containing the liquid film(1 ml/m^(2)).The growth,development,and death of the larvae or pupae were observed in a laboratory environment or in an artificial incubator at different temperatures.The data were organized and analyzed using Excel 2016 and SPSS 27.0 softwares.The survival curves of larvae or pupae exposed to the liquid film between different groups were compared using the log-rank test.The length of larvae was compared using the independent samples t-test.Results After exposure to the 1 ml/m^(2) liquid film,the median lethal times for the larvae at Ⅰ-Ⅱ instars of Cx.pipiens quinquefasciatus,Ae.albopictus,and Ae.aegypti were 2.67,7.04,and 6.45 d,respectively;for the larvae at Ⅲ-Ⅳ instars,the values were 0.53,1.64,and 1.71 d,respectively;and for the pupae,the values were 96.68,115.54,and 109.77 min,respectively.After 7 days of rearing,the mean larval lengths for Cx.pipiens quinquefasciatus,Ae.albopictus,and Ae.aegypti exposed to the liquid film were(3.28±0.40),(3.17±0.61),and(3.21±0.47)mm,respectively,which were significantly shorter than their respective control groups(all P<0.001).Across the temperatures of 20,25,30,and 35℃,the mortality rates of larvae in the liquid film groups increased with rising temperatures:the mortality rates on the first day were 66.67%,71.11%,91.11%,and 100% for Cx.pipiens quinquefasciatus,respectively;8.89%,30.00%,55.56%,and 81.11%for Ae.albopictus,respectively;and 14.44%,25.56%,56.67%,and 75.56% for Ae.aegypti,respectively.Conclusions The polydimethylsiloxane liquid film can well control the larvae and pupae of the three mosquito species and impede larval growth and development,and high temperatures can enhance the effectiveness.The polyd

关 键 词：聚二甲基硅氧烷水膜 致倦库蚊 白纹伊蚊 埃及伊蚊 实验室效果 

分 类 号：R384.1[医药卫生—医学寄生虫学] R183.5[医药卫生—基础医学]