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Evaluation of selected South African ethnomedicinal plants as mosquito repellents against the Anopheles arabiensis mosquito in arodent model.

Authors :
Maharaj, Rajendra
Maharaj, Vinesh
Newmarch, Marion
Crouch, Neil R.
Bhagwandin, Niresh
Folb, Peter I.
Pillay, Pamisha
Gayaram, Reshma
Source :
Malaria Journal; 2010, Vol. 9, p301-308, 8p
Publication Year :
2010

Abstract

Background: This study was initiated to establish whether any South African ethnomedicinal plants (indigenous or exotic), that have been reported to be used traditionally to repel or kill mosquitoes, exhibit effective mosquito repellent properties. Methods: Extracts of a selection of South African taxa were tested for repellency properties in an applicable mosquito feeding-probing assay using unfed female Anopheles arabiensis. Results: Although a water extract of the roots of Chenopodium opulifolium was found to be 97% as effective as DEET after 2 mins, time lag studies revealed a substantial reduction in efficacy (to 30%) within two hours. Conclusions: None of the plant extracts investigated exhibited residual repellencies >60% after three hours. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
14752875
Volume :
9
Database :
Complementary Index
Journal :
Malaria Journal
Publication Type :
Academic Journal
Accession number :
55596440
Full Text :
https://doi.org/10.1186/1475-2875-9-301