Objective To understand and master the density,population composition,and seasonal fluctuations of four vector species including rats,flies,cockroaches,and mosquitoes,in Shenyang during 2022,so as to provide data support for disease vector prevention and control.Methods Night trapping method was used for rodent monitoring,trap method was used for fly monitoring,stick trapping method was used for cockroach monitoring,and trap lamp method was used for mosquito monitoring.Excel 2013 and SPSS 27.0 software were used for statistical analysis.Results The average density of rodents in Shenyang in 2022 was 0.11 rodents per 100 rodents,and the dominant species was Rattus norvegicus,accounting for 83.33%,with no significant difference in species composition ratio among different habitats.The average density of flies was 53.35 flies per cage,the highest density was 98.56 flies per cage in August,and the dominant species was Lucilia sericata,accounting for 38.00%.The highest density of flies in different habitats was in residential areas,and the composition ratio of flies in different habitats was significantly significant(χ2=1 208.919,P＜0.01).The average cockroach density was 0.14 cockroaches/sheet,the infestation rate was 6.61%,and the dominant species was Blattella germanica.The peak cockroach density was in July,and the highest cockroach density was 29 cockroaches/sheet in the farmers'market.The average density of female mosquitoes was 11.85/(light·night),and the dominant species was Culex pipiens pallens.The peak density of mosquitoes was in August,and the highest density of female mosquitoes was 162 mosquitoes/(light·night)in livestock sheds.There were statistically significant difference in the composition ratio of mosquitoes in different habitats(χ2=261.121,P＜0.01).Conclusion Based on the monitoring data of major vectors in Shenyang,comprehensive prevention and control should be carried out in advance according to the density and seasonal fluctuation of different habitats,so as to control the occurrence of insect-borne infectious diseases to the greatest extent.
维普
万方数据
