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Preliminary field evaluation of the repellent ‘Simno’ against the blackfly Simulium damnosum s.l., a biting midge and mosquitoes*

Published online by Cambridge University Press:  19 September 2011

A. K. Opoku ,
J. N. Raybould  and
D. K. Kessie
A. K. Opoku
Affiliation:
Public Health Laboratory, Volta River Authority, Akosombo, Ghana
J. N. Raybould
Affiliation:
WHO Onchocerciasis Control Programme in the Volta River Basin Area, c/o Public Health Laboratory, Akosombo, Ghana
D. K. Kessie
Affiliation:
Public Health Laboratory, Volta River Authority, Akosombo, Ghana
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Abstract

The repellent ‘Simno’, which is made in Ghana from edible plant products, was tested in two forms as base-oil and a cream. Biting catches were made by bait subjects with one leg only smeared with a measured amount of ‘Simno’. The catches from each leg were then compared. The base-oil was only tested against Simulium damnosum s.l. It was found to be 100% effective for over 10 hr even after 2 years storage. The repellent cream worked well against a biting midge and various mosquitoes as well as S. damnosum s.l, but was seldom completely effective and the potency varied between samples. Nevertheless, one sample retained its full potency after 2 years storage. ‘Simno’ repellent is convenient to use (especially the cream) and is well accepted by the local people. The active ingredients of'Simno’ need to be identified.

Keywords

‘Simno’ repellentevaluationAfrican edible plant productsbase-oilcreambiting-catchesstandardizationSimulium damnosumbiting-midgemosquitoes
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 7 , Issue 1 , February 1986 , pp. 31 - 36
Copyright
Copyright © ICIPE 1986

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References

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