Current Susceptibility Status of MalaysianCulex quinquefasciatus(Diptera: Culicidae) Against DDT, Propoxur, Malathion, and Permethrin

Abstract

A nationwide investigation was carried out to determine the current susceptibility status of Culex quinquefasciatus Say populations against four active ingredients representing four major insecticide classes: DDT, propoxur, malathion, and permethrin. Across 14 study sites, both larval and adult bioassays exhibited dissimilar trends in susceptibility. A correlation between propoxur and malathion resistance and between propoxur and permethrin resistance in larval bioassays was found. The results obtained from this study provide baseline information for vector control programs conducted by local authorities. The susceptibility status of this mosquito should be monitored from time to time to ensure the effectiveness of current vector control operations in Malaysia.

Mitochondrial DNA analyses reveal low genetic diversity in Culex quinquefasciatus from residential areas in Malaysia

“…According to a previous report by the present authors, Malaysian Cx . quinquefasciatus that were collected concurrently from the same localities developed a wide range of insecticide resistance towards dichlorodiphenyltrichloroethane (DDT), propoxur, malathion and permethrin (Low et al ., ). It is important to point out that insecticide resistance has evolved in this mosquito species in Malaysia because this suggests that the evolution of insecticide resistance is associated with a hitchhiking effect and with consequently reduced levels of genetic variation.…”

First Report on Adulticide Susceptibility Status of Aedes albopictus, Culex quinquefasciatus, and Culex vishnui from a Pig Farm in Tanjung Sepat, Selangor, Malaysia

“…quinquefasciatus has been well documented in many parts of the world, notably Malaysia (Chandre et al 1997, Liu et al 2004, Kasai et al 2007, Pridgeon et al 2008, Low et al 2013a. quinquefasciatus has been well documented in many parts of the world, notably Malaysia (Chandre et al 1997, Liu et al 2004, Kasai et al 2007, Pridgeon et al 2008, Low et al 2013a.…”

Biodegradation and Utilization of Organophosphorus Pesticide Malathion by Cyanobacteria

“…Malathion is a nonsystemic, wide spectrum organophosphate pesticide (OP), used to control insects on field crops, fruits, vegetables and also extensively used to prevent mosquitoes, flies, household insects, animal parasites, and head body lice [4]. …”