两种杀虫剂超低容量喷雾杀灭白纹伊蚊现场实验研究

doi:10.11853/j.issn.1003.8280.2021.02.024

摘要/Abstract

摘要： 目的观察2种杀虫剂超低容量喷雾现场杀灭白纹伊蚊成蚊的效果，为登革热疫情现场应急处置提供技术参数。方法 2019年5月31日至6月10日在深圳市某辖区居民区内，将10%氯氟醚菊酯·氯菊酯水乳剂和10.4% S-生物烯丙菊酯·氯菊酯水乳剂采用超低容量喷雾进行杀灭白纹伊蚊成蚊试验，采用人诱指数法监测白纹伊蚊密度，观察施药前后试验区和对照区白纹伊蚊的密度变化。采用配对t检验和Mann-whitney U检验比较施药后不同时间和不同药物下的蚊密度差异，以评估杀灭成蚊效果。结果 10%氯氟醚菊酯·氯菊酯水乳剂和10.4% S-生物烯丙菊酯·氯菊酯水乳剂喷洒后0.5、1.0和24.0 h蚊虫平均相对密度下降率分别为100%、99.1%、59.5%和99.4%、96.1%、54.5%。2种药物喷雾后1.0和24.0 h的蚊密度差异均有统计学意义（t=6.176，P=0.025；t=16.411，P=0.004），但使用2种药物灭蚊处理1.0 h后的蚊密度差异无统计学意义（Z=-1.348，P=0.178），2种杀虫剂对成蚊的杀灭效果无明显差异。结论 2种杀虫剂采用超低容量喷雾可快速降低白纹伊蚊成蚊密度，控制效果明显。

关键词: 登革热, 白纹伊蚊, 超低容量喷雾, 人诱指数

Abstract: Objective To observe the effects of the two insecticide formulations by ultra-low-volume spraying in killing adult Aedes albopictus in the field, and to provide technical parameters for the on-site emergency disposal of dengue fever. Methods Two ultra-low-volume spray formulations (10% meperfluthrin·permethrin aqueous emulsion and 10.4% S-bioallethrin·permethrin aqueous emulsion) were used to kill adult Ae. albopictus from May 31 to June 10, 2019, in a residential area within a jurisdiction in Shenzhen, China. The human induced index method was used to monitor the density of Ae. albopictus, and the density changes of Ae. albopictus in the test and control areas after insecticide application were observed. The paired t-test and Mann-Whitney U test were used to compare the mosquito density at different times after application of different insecticides to evaluate their effects of killing adult mosquitoes. Results The mean relative density of Ae. albopictus decreased by 100%, 99.1%, and 59.5% at 0.5, 1.0, and 24.0 h, respectively, after spraying 10% meperfluthrin·permethrin aqueous emulsion, and by 99.4%, 96.1%, and 54.5% at 0.5, 1.0, and 24.0 h, respectively, after spraying 10.4% S-bioallethrin·permethrin aqueous emulsion. There were significant differences in mosquito density at 1.0 and 24.0 h after spraying of the two insecticides (t=6.176, P=0.025; t=16.411, P=0.004), but no significant difference was observed in mosquito density at 1.0 h after spraying of the two insecticides. The results showed that there was no significant difference in the adult mosquito-killing effect between the two insecticides (Z=-1.348, P=0.178). Conclusion Ultra-low-volume sprays of the two insecticide formulations can quickly reduce the density of adult Ae. albopictus, exhibiting an obvious control effect on Ae. albopictus.

Key words: Dengue fever, Aedes albopictus, Ultra-low-volume spray, Human induced index

中图分类号:

秦彦珉, 张韶华, 刘阳, 戴传文, 陈家慧. 两种杀虫剂超低容量喷雾杀灭白纹伊蚊现场实验研究[J]. 中国媒介生物学及控制杂志, 2021, 32(2): 239-242.

QIN Yan-min, ZHANG Shao-hua, LIU Yang, DAI Chuan-wen, CHEN Jia-hui. Effects of the two insecticide formulations by ultra-low-volume spraying in killing Aedes albopictus:an experimental field study[J]. Chines Journal of Vector Biology and Control, 2021, 32(2): 239-242.

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