Analysis of the ecological surveillance of main vectors in Xinxiang in 2023

LIU Dan; WU Jiale; ZHENG Xinyu

doi:10.19821/j.1671-2781.2025.03.015

Abstract：Objective To investigate the density,population composition and seasonal fluctuation of vectors in Xinxiang in 2023,so as to provide scientific evidence for vector control,and the risk assessment of related diseases.Methods Mosquitoes were captured by light trapping method in five habitats:residential areas,parks,hospitals,rural areas,and livestock farms.Flies were captured by the trap-cage method in four habitats:farmers'market;catering external environment,green belt and residential area.Rodents were captured by night-cage and sticky board methods in three habitats:urban residential areas,special industries,and rural natural villages.Cockroaches were captured by stick-trap method in six habitats:farmers'markets,supermarkets,hotels,catering industry,hospitals,and residential areas.SPSS 25.0 software was used for statistical analysis.Results In 2023,a total of 1 471 female mosquitoes were captured,Culex pipiens pallens was the dominant species.The average density was 12.26 mosquitoes per lamp per night,and the peak was in June.The number of female mosquitoes in livestock farm was the highest(403 mosquitoes).There were 159 flies captured,Musca domestica was the dominant species.The average density was 2.48 flies per cage,and the peak was in June.The number of flies in green belts was the highest(59 flies).There were 35 rodents captured,and Mus musculus was the dominant species,the average density of rodents was 0.97％.The number of rodents in rural natural villages was the highest(16 rodents).There were 193 cockroaches captured,Blattella germanica was the dominant species.The average density was 0.15 cockroaches per piece,it showed a downward trend from January to September,and the highest density in November.The number of cockroaches in farmers'markets was the highest(59 cockroaches).Conclusion In 2023,the average density of flies in Xinxiang was lower than the average level of Henan,the average densities of rodents,mosquitoes,cockroaches,in Xinxiang were higher than the average level in 2022.According to the monitoring data and seasonal fluctuationof main vectors,comprehensive measures should be carried out in advance to prevent the prevalence and outbreak of vector-borne diseases.