國家衛生研究院 NHRI:Item 3990099045/12614
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/12614


    Title: Using uplc–ms/ms to evaluate the dissemination of pyriproxyfen by aedes mosquitoes to combat cryptic larval habitats after source reduction in Kaohsiung in Southern Taiwan
    Authors: Chen, YA;Lai, YT;Wu, KC;Yen, TY;Chen, CY;Tsai, KH
    Contributors: National Mosquito-Borne Diseases Control Research Center
    Abstract: The policy regarding mosquito control strategies in Taiwan is based on integrated vector management (IVM). The major approach is source reduction via collaboration by both residents and governments. However, small and cryptic habitats of dengue vectors are hard to find and eliminate in urban communities. Therefore, this study evaluated a complementary approach that targeted cryptic habitats by utilizing mosquitoes themselves as vehicles to transfer an insect growth regulator, pyriproxyfen (PPF), to their breeding sites; the amount of PPF in breeding water was determined with ultra-performance liquid chromatography coupled with tandem mass spectrometry (UPLC–MS/MS). A bioassay conducted by introducing ten late-instar larvae into PPF solution was performed to assess emergence inhibition (EI). PPF was found at 0.56 ± 0.04 ng in 25 mL of water by dissemination via ten Aedes aegypti mosquitoes exposed to 0.01% PPF, leading to 100% EI. After the community-level source reduction, a field trial in Kaohsiung in Southern Taiwan showed that 30.8%–31.5% of cryptic ovitraps reached EI ≥ 50% one month after spraying 0.01% PPF in microhabitats favored by mosquitoes. IVM in parallel with residual spraying of PPF on resting surfaces of mosquitoes could serve as a simple and complementary approach to reduce cryptic larval sources in urban communities in Southern Taiwan.
    Date: 2020-04-19
    Relation: Insects. 2020 Apr 19;11(4):Article number 251.
    Link to: http://dx.doi.org/10.3390/insects11040251
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=2075-4450&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000533910800040
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85083669881
    Appears in Collections:[Others] Periodical Articles

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