[ English | Bahasa Malaysia ] Hari ini ialah 3 Aug 2020, 10:55 PM (Terakhir dikemaskini pada: 27th Jul 2020)

Text Red Text Black Text Blue Text Green Text Smaller Text Reset Text Larger

Publication Details
Year :

2013

Journal :

Chen CD, Nazni WA, Lee HL, Norma-Rashid Y, Lardizabal ML and Sofian-Azirun M (2013). Temephos resistance in field Aedes (Stegomyia) albopictus (Skuse) from Selangor, Malaysia. Tropical Biomedicine 30(2): 220-230

Abstract :

Larvae of Aedes albopictus obtained from dengue endemic areas in Selangor, Malaysia were evaluated for their susceptibility to operational dosage of temephos (1 mg/L). Larval bioassays were carried out in accordance to modified WHO standard methods. Biochemical microassay of enzymes in Ae. albopictus was conducted to detect the emergence of insecticide resistance and to define the mechanisms involved in temephos resistance. The 50% mortality lethal time (LT50) for Ae. albopictus tested against temephos ranged between 58.65 to 112.50 minutes, with resistance ratio ranging from 0.75 - 1.45. This study addressed the fluctuation of time-related susceptibility status of Ae. albopictus towards insecticide. Significant difference on the weekly enzyme levels of non-specific esterases, mixed function oxidases and glutathione S-transferases was detected (p ≤ 0.05). No significant correlation was found between temephos resistance and enzyme activity (p > 0.05). Only glutathione S-transferases displayed high level of activity, indicating that Ae. albopictus may be resistant to other groups of insecticide. The insensitive acetylcholinesterase was detected in some field collected Ae. albopictus populations, indicating the possibility of emergence of carbamate or other organophosphate resistance in the field populations. Continuous resistance monitoring should be conducted regularly to confirm the efficacy of insecticides for dengue control.

myGOV MAMPU JPA IKU MSC NMMR CRC MyHEALTH MOH Globinmed SPA krste.my

Notis

Logo-SIRIM-n-UKAS-IMR

IMR ialah sebuah organisasi bertauliah oleh SIRIM (nombor sijil 2972).

Laman ini sesuai dilihat menggunakan Firefox (24.0) dengan resolusi 1280 x 768 pixels atau lebih.

Lokasi Kami

world

Kami terletak di Jalan Pahang, 50588 Kuala Lumpur, Malaysia. Kami beroperasi dari jam 8.00pg - 5.00ptg Isnin - Jumaat. Klik pada imej peta untuk melancarkan servis Google Maps.

Hubungi Kami