关键词: 媒介生物, 密度监测, 动态, 抗药性, 防治

Abstract: Objective To study annual dynamic of vectors,such as rats,mosquitoes,flies and cockroaches from 2002-2006 in Jiangsu province.Methods Night trapping,sticky card(case) trap were used for the survellence of rat and cockroaches from Jan.to Dec.,indoor-resting mosquito-adults and cage trap method were used for density monitoring of mosquitoes and flies respectively from Apr.to Dec..Topical application was used for pesticide resistance detection of Musca domestica Linnaeus and Blattella germanica(Linnaeus),dipping method or distinguishing dosage method for Culex pipiens pallens Caguillett for dichlorovos,permethrin,cypermethrin and deltamethrin respectively,prothrombin time(PT) were used for the pesticide resistance detection of Rattus norvegicus(Berkenhout) to warfarin.Results Density of mosquitoes,flies and cockroaches increased from 2002 to 2006,the highest of them was 15.20 individuals per hour in 2006, 25.12 individuals per cage in 2005,1.20 individuals per card(case) in 2006 respectively.Density of rats fluctuated,the lowest,0.60% occurred in 2006.Ratio of R.norvegicus(Berkenhout) increased yearly,B.germanica(Linnaeus) turned into one of the dominant species.Exotic species,Ophyra aenescens(Wiedeman) invaded,Cx.tritaeniorhynchus Giles and Anopheles sinensis Wiedemann emerged suddenly and numerously,dominant vector species developed resistance to some normal insecticides.Conclusion For effective vector control,the vector surveillance should be strengthened,to know the dynamic of local vector-population,to emphasize on vector control based on local vector dynamic and vector resistance.