Objective To analyze the investment in the construction of ‘mosquito-free village’ in Qingtian county, Zhejiang province, China, and to evaluate the role of ‘mosquito-free village’ in the control of mosquito density, the control of mosquito-borne infectious diseases such as dengue fever, and the promotion of rural development. Methods From April to October in 2017-2019, the pipette method was used to measure the density of larval mosquitoes in Xiaozhoushan village. From April to October in 2017-2018, the double mosquito net method was used to determine the density of adult mosquitoes. In the middle of October in 2017-2019, a questionnaire survey was used to investigate the investment in mosquito control. SPSS 16.0 software was used for data analysis including the t-test and analysis of variance. Results Since the construction of ‘mosquito-free village’ in Xiaozhoushan village, local mosquito density had decreased significantly. The 100-house index fell from 42.7 places/100 houses in 2017 to 2.9 places/100 houses in 2019. The adult mosquito density decreased from 29.3 mosquitoes/net·hour in 2017 to 2.4 mosquitoes/net·hour in 2018. The expenditure of mosquito control had decreased year by year, and the expenditure of mosquito control in 2019 was significantly lower than that in 2017 before the construction of ‘mosquito-free village’. The average investment per household decreased from 35.0 yuan to 5.0 yuan, and the collective investment of the village decreased from 74 000.0 yuan to 17 000.0 yuan. Moreover, the construction of ‘mosquito-free village’ could effectively reduce the possibility of local transmission of dengue fever and thus reduce the cost of response to the epidemic of dengue fever. Conclusion The construction of ‘mosquito-free village’ in rural areas can effectively reduce the density of mosquitoes. It is sustainable and economical. Xiaozhoushan's experience of ‘mosquito-free village’ construction can be promoted in hilly rural areas where small bodies of standing water are the main breeding place of mosquitoes.
ZHU Hai-bo, YE Hui-feng, CHEN Ming, ZENG Yong, CHEN Fan, FU Zheng-jun
. Effectiveness evaluation of ‘mosquito-free village’ construction in Qingtian county, Zhejiang province, China[J]. Chinese Journal of Vector Biology and Control, 2021
, 32(3)
: 365
-368
.
DOI: 10.11853/j.issn.1003.8280.2021.03.021
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