Wash resistance and repellent properties of Africa University mosquito blankets against mosquitoes

  • N. Lukwa | nziraa33@yahoo.co.uk National Institute of Health Research, Causeway, Harare, Zimbabwe.
  • A. Makuwaza National Institute of Health Research, Causeway, Harare, Zimbabwe.
  • T. Chiwade National Institute of Health Research, Causeway, Harare, Zimbabwe.
  • S.L. Mutambu National Institute of Health Research, Causeway, Harare, Zimbabwe.
  • M. Zimba University of Zimbabwe, Biological Sciences, Mount Pleasant, Harare, Zimbabwe.
  • P. Munosiyei Bindura University of Science Education, Bindura, Zimbabwe.

Abstract

The effect of permethrin-treated Africa University (AU) mosquito blankets on susceptible female Anopheles gambiae sensu lato mosquitoes was studied under laboratory conditions at Africa University Campus in Mutare, Zimbabwe. Wash resistance (ability to retain an effective dose that kills ≥80% of mosquitoes after a number of washes) and repellence (ability to prevent ≥80% of mosquito bites) properties were studied. The AU blankets were wash resistant when 100% mortality was recorded up to 20 washes, declining to 90% after 25 washes. Untreated AU blankets did not cause any mortality on mosquitoes. However, mosquito repellence was 96%, 94%, 97.9%, 87%, 85% and 80.7% for treated AU blankets washed 0, 5, 10, 15, 20 and 25 times, respectively. Mosquito repellence was consistently above 80% from 0-25 washes. In conclusion, AU blankets washed 25 times were effective in repelling and killing An. gambiae sl mosquitoes under laboratory conditions.

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Author Biographies

N. Lukwa, National Institute of Health Research, Causeway, Harare
Medical Entomologist
A. Makuwaza, National Institute of Health Research, Causeway, Harare
T. Chiwade, National Institute of Health Research, Causeway, Harare
S.L. Mutambu, National Institute of Health Research, Causeway, Harare
Director
M. Zimba, University of Zimbabwe, Biological Sciences, Mount Pleasant, Harare
Lecturer, vector control and entomology
P. Munosiyei, Bindura University of Science Education, Bindura
Published
2013-04-23
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Section
Articles
Supporting Agencies
Africa University
Keywords:
An. gambiae sl, wash resistance, repellence, bioassays, permethrin.
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How to Cite
Lukwa, N., Makuwaza, A., Chiwade, T., Mutambu, S., Zimba, M., & Munosiyei, P. (2013). Wash resistance and repellent properties of Africa University mosquito blankets against mosquitoes. Journal of Entomological and Acarological Research, 45(1), e5. https://doi.org/10.4081/jear.2013.e5