Publication: Residual insecticidal activity of long-lasting deltamethrin-treated curtains after 1 year of household use for dengue control
Issued Date
2010-09-01
Resource Type
ISSN
13653156
13602276
13602276
Other identifier(s)
2-s2.0-77955348165
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Mahidol University
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SCOPUS
Bibliographic Citation
Tropical Medicine and International Health. Vol.15, No.9 (2010), 1067-1071
Suggested Citation
V. Vanlerberghe, Y. Trongtokit, L. Cremonini, S. Jirarojwatana, C. Apiwathnasorn, P. Van Der Stuyft Residual insecticidal activity of long-lasting deltamethrin-treated curtains after 1 year of household use for dengue control. Tropical Medicine and International Health. Vol.15, No.9 (2010), 1067-1071. doi:10.1111/j.1365-3156.2010.02582.x Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/29195
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Title
Residual insecticidal activity of long-lasting deltamethrin-treated curtains after 1 year of household use for dengue control
Abstract
Objective To evaluate the residual insecticidal activity of the PermaNet® curtains on Aedes aegypti after 1 year of use in Thai households and to assess the influence of sun and dust exposure, washing practices and detergent use. Methods We sampled UV-protected PermaNet ® curtains made of a long-lasting deltamethrin-[55 mg/m 2] treated polyester netting, before (10 curtains) and after 8 (10 curtains) and 12 months (66 curtains) of household use in a field site in Chon Buri, Thailand. We assessed the residual insecticidal activity of the curtains by standard WHO bioassay, using a deltamethrin-susceptible insectarium Aedes aegypti strain. Results Mosquito mortality was 100% before distribution, 100% at 8 months and 98.2% (95% CI 97.9-98.5) at 12 months of use. Sunlight, hand-washing and detergent use had no effect on the residual insecticidal activity after 12 months. However, the mosquito survival rate increased by a factor of 6.4 (95% CI 3.5-11.8) on machine-washed curtains and by a factor of 2.0 (95% CI 1.4-2.9) on curtains not covered by dust. Conclusion The residual insecticidal activity of PermaNet® curtains remains high after 12 months use under field conditions. © 2010 Blackwell Publishing Ltd.