Objective To evaluate the field efficacy of 5 insecticides on Aedes mosquitoes, providing the technical support for Aedes mosquito control. Methods Aedes mosquito control was conducted in 5 residential areas in Nanning city by combination of ultra-low volume (ULV) spray and barrier treatment technology with 8% chlorinulthrin, 10% aminulthrin, 10% amine-chlorinulthrin, 10% cyanthrin and 10.4% permethrin from June to October in 2017. Observation was made for the change of Aedes albopictus density in above 5 treated areas and 1 untreated control area before and after spraying for evaluating their control efficacy. Results Aedes mosquitoes density (landing index) were 2.0-4.0, 1.0-2.0, 1.0, 1.0-2.0, 2.0-4.0, and 3.0-5.0 only/person·hour following 5 insecticides spray on the day 1, 3, 5, 7, 10, and 15 respectively, their reduction rates were more than 80% and their control lasted more over 15 days. The mosquito density in untreated control area were 16.0, 16.0, 17.0, 17.0, 18.0, and 19.0 only/person·hour. Differences were statistically significant (P<0.05) in Aedes densities between test areas and the untreated control area. Conclusion Above 5 insecticides could be used to control adult Aedes by ULV or barrier treatment, and their initial efficacy was quick and satisfactory, residual efficacy lasted more than 15 days.
LI Zu-qiu, QU Zhi-qiang, TANG Hong-yang, LING Feng, LI Ping, LUO Mi-fang, SHI Jian
. Field control efficacy of Aedes vectors of dengue fever with five public health insecticides[J]. Chinese Journal of Vector Biology and Control, 2018
, 29(6)
: 598
-600
.
DOI: 10.11853/j.issn.1003.8280.2018.06.011
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