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目的比较黑箱法和二氧化碳(CO2)诱捕法监测蚊虫密度的差异,探讨黑箱法在蚊虫密度监测中的作用。方法在2个区7个点比较黑箱法和CO2诱捕法监测蚊虫密度、种类的差异,比较2种方法监测蚊种构成比、性别比和季节消长趋势的相关性。结果黑箱法监测蚊虫平均密度为25.63只/箱,是CO2诱捕法平均密度(7.32只/器)的3.50倍,黑箱法监测雌蚊平均密度为14.65只/箱,是CO2诱捕法平均密度(6.23只/器)的2.35倍,2种方法差异有统计学意义,密度指数无相关性;黑箱法捕获蚊种构成,淡色库蚊占捕蚊总数的94.97%,为优势蚊种;白纹伊蚊占4.97%,三带喙库蚊和中华按蚊各仅占0.03%;CO2诱捕法捕获蚊种构成,淡色库蚊占捕蚊总数的79.26%,为优势蚊种;白纹伊蚊占18.27%,三带喙库蚊和中华按蚊分别占2.10%和0.37%,2种监测方法蚊虫构成比差异有统计学意义。结论黑箱法设备简单,易操作,经济成本低,适用范围较广,比较适合淡色库蚊的监测,在淡色库蚊为优势种的地区,可使用黑箱法进行蚊虫密度监测;CO2诱捕法除适合淡色库蚊监测外,还适用于白纹伊蚊监测。
Objective To compare the difference of mosquito density between black box method and carbon dioxide (CO2) trapping method and to explore the role of black box method in mosquito density monitoring. Methods The black box method and CO2 trapping method were used to compare the density and species of mosquitoes at 7 points in 2 districts. The correlation between mosquito species composition ratio, sex ratio and seasonal fluctuation trend was compared. Results The average density of mosquitoes monitored by the black box method was 25.63 / box, which was 3.50 times of the average density of 7.32 / CO2 catches. The average density of the female mosquitoes monitored by the black box method was 14.65 / box, which was the average density of CO2 trapping method (6.23 Only / device), the difference between the two methods was statistically significant, the density index had no correlation; the black box method captured mosquito species, Culex pipiens pallens accounted for 94.97% of the total number of mosquitoes, the dominant mosquito species; Aedes albopictus Accounting for only 4.97%, Culex tritaeniorhynchus and An. Sinensis each accounted for only 0.03%; CO2 trapping method to capture the composition of mosquitoes, Culex pipiens pallens accounted for 79.26% of the total number of mosquitoes, the dominant mosquito species; Aedes albopictus accounted for 18.27% , Culex tritaeniorhynchus and Anopheles sinensis accounted for 2.10% and 0.37%, respectively. There were significant differences in the constituent ratios of mosquitoes among the two monitoring methods. Conclusion The black box method is simple and easy to operate with low economic cost and wide range of application. It is more suitable for the monitoring of Culex pipiens pallens. In the area where Culex pipiens pallens are the dominant species, the black box method can be used to monitor the mosquito density. Culex pipiens pallens monitoring, but also for Aedes albopictus monitoring.