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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/5232

Title: Screening for adulticidal bioactivity of South African plants against Anopheles arabiensis
Authors: Maharaj, R
Maharaj, V
Crouch, NR
Bhagwandin, N
Folb, PI
Pillay, P
Gayaram, R
Keywords: Anopheles arabiensis
Adulticidal bioactivity
Ethnomedicinal plants
Issue Date: Aug-2011
Publisher: BioMed Central
Citation: Maharaj, R, Maharaj, V, Crouch, NR et al. 2011. Screening for adulticidal bioactivity of South African plants against Anopheles arabiensis. Malaria Journal, Vol 10, pp 233
Series/Report no.: Workflow request;6638
Abstract: This study was conducted to evaluate whether a selection of South African ethnomedicinal plants included in this study displayed insecticidal properties when screened against adult stages of the mosquito. 381 crude extracts of 80 plant taxa in 42 families were sprayed onto ceramic tiles and screened using the cone bio-assay method for insecticide efficacy testing. Blood-fed, female Anopheles arabiensis mosquitoes were exposed to the treated tiles for a period of sixty minutes. Mosquito mortality was monitored for twenty-four hours. Of all the extracts analysed, the highest activity was observed in Ptaeroxylon obliquum (Ptaeroxylaceae) and Pittosporum viridiflorum (Pittosporaceae), a single extract from each, exhibiting more than 50% mortality. A large proportion (81.63%) of the extracts tested displayed low levels of mosquitocidal activity. The remainder of the extracts (17.85%) exhibited no bioactivity (0% mortality). The screening results have shown that in accordance with WHO standards, none of the crude extracts tested had exhibited greater than 60% mortality against the adult stages of the malaria vector Anopheles arabiensis
Description: Copyright: 2011 Maharaj et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
URI: http://www.malariajournal.com/content/pdf/1475-2875-10-233.pdf
ISSN: 1475-2875
Appears in Collections:General science, engineering & technology

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