Assessment of the susceptibility status of Aedes albopictus (Diptera: Culicidae) from Interior, Sandakan and Tawau divisions of Sabah, Malaysia based on WHO diagnostic doses of larvicides
https://doi.org/10.47665/tb.38.2.058
- Author:
Elia-Amira, N.M.R.
1
;
Chen, C.D.
1
,
2
;
Low, V.L.
3
;
Lau, K.W.
1
;
Haziqah-Rashid, A.
1
;
Amelia-Yap, Z.H.
3
;
Lee, H.L.
4
;
Azidah, A.A.
1
;
Sofian-Azirun, M.
1
Author Information
1. Institute of Biological Sciences, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia&
2. Rimba Ilmu Botanical Garden, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
3. Higher Institution Centre of Excellence (HICoE), Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603 Kuala Lumpur, Malaysia
4. Medical Entomology Unit, Institute for Medical Research, Jalan Pahang, 50588 Kuala Lumpur, Malaysia
- Publication Type:Journal Article
- Keywords:
Aedes albopictus;
organochlorine;
organophosphate;
Sabah;
Malaysia
- From:Tropical Biomedicine
2021;38(No.2):196-204
- CountryMalaysia
- Language:English
-
Abstract:
Susceptibility status of Aedes albopictus (Skuse) sampled from residential areas in Interior, Sandakan and Tawau divisions of Sabah, Malaysia, was evaluated based on the WHOrecommended doses of organochlorine and organophosphate larvicides. To determine susceptibility status, larval bioassays were carried out and post 24-hour mortalities based on WHO resistance classifications were adopted. The results demonstrated that Ae. albopictus larvae were resistant toward 5 out of the 8 larvicides tested. Larvae from all populations were resistant against bromophos, fenitrothion, malathion, temephos and dichlorodiphenyltrichloroethane (DDT), with mortalities ranging from 0.00 to 89.33%. Dieldrin, on the other hand, could induce 100.00% mortalities in all populations, followed by fenthion and chlorpyrifos, with mortalities ranging from 97.33 to 100.00% and 81.33 to 100.00% respectively. Despite most populations exhibiting similitude in their resistance status, larvae from Sandakan exhibited the highest resistance level whereas the lowest level was observed in Keningau. In view of the inadequacy of some larvicides in controlling Ae. albopictus in this study, integrated management such as insecticide rotation or combination of interventions is warranted.
- Full text:8.2021my1258.pdf
