Insecticide susceptibility of dengue fever vectors in Kaohsiung city

• Main Authors: Ya-chu Chan, 詹雅筑
• Other Authors: Hsiu-Hua Pai
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/93079605187343927155

碩士 === 國立高雄大學 === 運動健康與休閒學系碩士班 === 102 === Dengue fever is a important infect born diseases in Taiwan. The major vectors are Aedes aegypti and Aedes albopictus. Some studies had found that Aedes aegypti had resistance to permethrin and etofenprox in Kaohsiung city, so it is important to understand the insecticide resistance for Aedes aegypti and Aedes albopictus in Kaohsiung city. This study was carried out during April to May in 2013. We used the ovitraps to collect the eggs of Aedes aegypti and Aedes albopictus in Kaohsiung city(Sanmin district, Lingya district, Qianzhen district, Xiaogang district, Zuoying district, Mituo district) and collected eggs were taken back to laboratory for future breed. The study were conducted by WHO membrane bioassay, larvae bioassay, topical application bioassay and membrane bioassay to test the insecticide resistance for Aedes aegypti and Aedes albopictus in Kaohsiung different districts. The result of WHO membrane bioassay show that Aedes aegypti in Kaohsiung city has resistance to pyrethroid and possibility of resistance to carbamate and susceptibility to organophosphate. Aedes albopictus has possibility of resistance to carbamate and has susceptibility to pyrethroid and organophosphate.The result of larvae bioassay show that Aedes aegypti in Kaohsiung city has high resistance to permethrin and Aedes albopictus has susceptibility to permethrin. The result of topical application bioassay show that Aedes aegypti in Kaohsiung city has high resistance to permethrin and Aedes albopictus has susceptibility to permethrin except Sanmin district. The result of adding the PBO to permethrin show that 1:10 has the best influence and effect Aedes albopictus better than Aedes aegypti. The result of membrane bioassay Aedes aegypti in Kaohsiung city has medium resistance to permethrin and Aedes albopictus has susceptibility to permethrin. The study hope to understand the insecticide resistance for dengue fever vectors in different districts and establish a regional insecticide index to provide a reference of prevention and control of dengue fever.