Objective To evaluate and discuss the effect of vector control based on the establishment of 'mosquito and fly-free village' in Hongxi village, Jiashan, Zhejiang province, and provide evidence for vector control in rural area.
Methods Spot inspection and symposium were used to evaluate the organization/management and system establishment of the 'mosquito and fly-free village'. Larval pipette method, spoon method, luring landing method, cage trapping method and visual observation were used to investigate the local mosquito and fly density. Questionnaire surveys were performed to investigate the knowledge awareness of the vector control methods and the satisfaction of the villagers.
Results In the establishment of the'mosquito and fly-free village' in Hongxi village, the organization/management of the villagers, work force performance and working system were perfect. The mosquito density from April to November 2019 were significantly lower than that during the same period in 2018, which reached the A control level of mosquito density in August, 2019. The adult fly density from April to November 2019 was significantly lower than that during the same period in 2018. According to the project standard, the fly density in Hongxi village reached the control level in October, 2019. The difference in knowledge awareness rate of the villagers in Hongxi village was significant before and after the establishment of 'mosquito and fly-free village' (χ2=44.843, P＜0.001), and the knowledge awareness rate after the establishment of 'mosquito and fly-free village' was significantly higher than that in villagers of two control villages . The villagers’ satisfaction with the establishment of 'mosquito and fly-free village' was 92.26%, which reached the A-level.
Conclusion The establishment of 'mosquito and fly-free village' can effectively reduce the mosquito and fly density and improve the living environment in rural areas. Further promotion is needed.
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