Organophosphate and organochlorine resistance in larval stage of aedes albopictus (Diptera: Culicidae) in Sabah, Malaysia
Document Type
Article
Publication Date
7-1-2010
Abstract
The present study aims to investigate the susceptibility status of Aedes albopictus (Skuse) collected from residential areas in Sabah, Malaysia towards eight WHO-recommended dosages of larvicides representing the classes of organophosphates and organochlorines. Field and reference strains of Ae. albopictus larvae were bioassayed in accordance to WHO standard methods using diagnostic dosages of bromophos, malathion, fenthion, fenitrothion, temephos, chlorpyrifos, dichlorodiphenyltrichloroethane (DDT), and dieldrin. The results revealed that Ae. albopictus was resistant (mortality < 90%) towards malathion, temephos, and DDT. In addition, most of the Ae. albopictus strains exhibited a wide range of susceptibilities against bromophos, with mortality ranged from 49.33 to 93.33%. On the contrary, only dieldrin was able to induce 100% mortality against all strains of Ae. albopictus. Tolerance to fenitrothion, fenthion, and chlorpyrifos, with mortality ranging from 81.33 to 97.33%, was also observed in this study.
Keywords
Aedes albopictus, organochlorine, organophosphate, Sabah, Malaysia
Divisions
InstituteofBiologicalSciences,tidrec
Funders
Research grants (Project No: RP021D/16SUS and RP021C/16SUS) from University of Malaya
Publication Title
Journal of Economic Entomology
Volume
111
Issue
5
Publisher
Oxford University Press
Event Title
Pacific Asia Conference in Information System
Event Location
Taipei,Taiwan
Event Dates
9-12 July 2010
Event Type
conference