Impact of Indoor Residual-Sprayed Deltamethrin on Different Surfaces in a Malaria Endemic Area in Balai Ringin, Sarawak

DOI: 10.4236/ae.2014.23023   PDF   HTML     2,837 Downloads   3,866 Views   Citations


Malaria control programme utilizing indoor residual spraying of chemical insecticide is only effective if a high coverage of targeted area is achieved. The effectiveness of the residual spraying, on the other hand, relies on the efficacy and residual activity of the insecticides applied, which to a certain extent are influenced by the nature of the sprayed surfaces. The bioefficacy of indoor residual-sprayed deltamethrin wettable granule (WG) formulation for the control of malaria was compared with the current dose of deltamethrin wettable powder (WP) in malaria endemic areas in Balai Ringin, Sarawak. Doses of 20 mg/m2 WP (control), 20 mg/m2 WG, 30 mg/m2 WG and 40 mg/m2 WG were sprayed separately on different surfaces namely, wooden, rough-bamboo, smooth-bamboo and brick surfaces. Residual activity of WP and WG formulations was tested against lab-bred Anopheles maculatus using WHO standard procedure. Deltamethrin at 30 mg/m2 WG exhibited the highest sustainable level of effectiveness against An. maculatus (An. maculatus mortality was between 95% - 100%) up to week 60 post-spraying when sprayed on smooth- bamboo surface. These results indicated that 30 mg/m2 WG could be an ideal concentration for controlling malaria vector effectively up to 15 months of which long-lasting residual spraying was envisaged. The usual two spraying cycles per year with 20 mg/m2 deltamethrin WP could be replaced with 30 mg/m2 deltamethrin WG since the long residual activity was achieved by employing a single spraying only.

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Rohani, A. , Zamree, I. , Mohamad Ali, W. , Hadi, A. , Asmad, M. , Nor, Z. and Lim, L. (2014) Impact of Indoor Residual-Sprayed Deltamethrin on Different Surfaces in a Malaria Endemic Area in Balai Ringin, Sarawak. Advances in Entomology, 2, 151-160. doi: 10.4236/ae.2014.23023.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Vasuki, V., Rajavel, A.R., Amalraj, D.D. and Das P.K. (1995) Insecticidal Activity of Some New Synthetic Compounds against Different Mosquito Species. Journal Communication Disease, 27, 146-150.
[2] Ansari, M.A., Mittal, P.K., Razdan, R.K. and Batra, C.P. (1997) Residual Efficacy of Deltamethrin 2.5 WP (K-OTHRIN) Sprayed on Different Types of Surfaces against Malaria Vector Anopheles culicifacies. Southeast Asian Journal of Tropical Medicine and Public Health, 28, 606-609.
[3] Mulambalah, C.S., Siamba, D.N., Ngeiywa, M.M. and Vulule, J.M. (2010) Evaluation of Lamda-Cyhalothrin on Different Surfaces in a Malaria Epidemic-Prone Area in Kenya. Research Journal of Biological Sciences, 5, 258-263.
[4] Loong, K.P., Chiang, G.L. and Yap, H.H. (1998) Field Study of the Bionomics of Anopheles maculatus and Its in Malaria Transmission in Malaysia. Southeast Asian Journal of Tropical Medicine and Public Health, 19, 724-728.
[5] Vector Borne Disease Control Programme (VBDCP) (2009) Sarawak. Ministry of Health Malaysia. Annual Report.
[6] Rubis, P., Chang, M.H., Nagum, A.K. and John, L.J. (1981) Parasitological and Entomological Studies on Filariasis in Seven Villages, Serian District, Sarawak, East Malaysia. Southeast Asian Journal of Tropical Medicine and Public Health, 12, 30-36.
[7] World Health Organization (1998) Test Procedures for Insecticide Resistance Monitoring in Malaria Vectors, Bio- Efficacy and Persistance of Insecticides on Treated Surfaces. WHO Report 43. Bioassay Test. In: Manual on Practical Entomology. Part II. World Health Organization, Geneva.
[8] Finney, D.J. (1989) Probit Analysis. Quant: Assays Based on Quantal Response Phycological and Biochemical Methods. Cambridge University Press, Cambridge.
[9] Santos, R.L., Fayal Ada, S., Aguiar, A.E., Vieira, D.B. and Póvoa, M.M. (2007) Evaluation of the Residual Effect of Pyrethroids on Anopheles in Brazilian Amazon. Revista de Saúde Pública, 41, 276-283.
[10] Vatandoost, H., Abai, M.R., Abbasi, M., Shaeghi, M., Abtahi, M. and Rafie, F. (2009) Designing of a Laboratory Model for Evaluation of the Residual Effects of Deltamethrin (K-Othrine WP5%) on Different Surfaces against Malaria Vector, Anopheles stephensi (Diptera: Culicidae). Journal of Vector Borne Diseases, 46, 261-267.
[11] Abtahi, S.M., Shaeghi, M., Abayie, M.R., Akbarzadeh, K., Vatandoost, H. and Darabi, H. (2007) Evaluation of Persistance and Residual of Deltamethrin and Cyfluthrin on Different Surfaces at Iranshar Area in Sistan and Baluchistan Province in Iran. 2004-2005. Iranian South Medical Journal, 9, 123-130.
[12] Giga, D.P. and Canhao, S.R. (1991) Relative Toxicity and Persistance of Pyrethroid Deposits on Different Surfaces for the Control of Prostephanus truncates and Sitophilus zeamais. Journal Stored Product Research, 27, 153-160.
[13] Govere, J., Durheim, D.N., Hunt, R.H., La Grange, J. and Coetzee, M. (2001) Evaluation of the Efficacy of Deltamethrin Using Contact Bioassay in a Malariavector Control Programme in Mpumalanga Province, South Africa. African Entomol, 9, 163-166.

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