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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/11097

Title: Insecticide susceptibility of natural populations of Anopheles coluzzii and Anopheles gambiae (sensu stricto) from Okyereko irrigation site, Ghana, West Africa
Authors: Chab, Joseph
Baidoo, P. K.
Datsomor, Alex K.
Okyere, Dora
Ablorde, Aikins
Iddrisu, Alidu
Wilson, Michael D.
Dadzie, Samuel K.
Jamet, Helen P.
Diclaro, Joseph W.
Keywords: Insecticide resistance
An. gambiae s.s
An. coluzzii
Issue Date: 2016
Publisher: Parasites & Vectors
Citation: Parasites & Vectors (2016) 9:182; DOI 10.1186/s13071-016-1462-0
Abstract: Background: The increasing spread of insecticide resistance in malaria vectors has been well documented across sub-Saharan Africa countries. The influence of irrigation on increasing vector resistance is poorly understood, and is critical to successful and ethical implementation of food security policies. This study investigated the insecticide resistance status of An. gambiae (s.l.) mosquitoes collected from the irrigated rice area of Okyereko, a village containing about 42 hectares of irrigated field within an irrigation project plan in the Central Region of Ghana. Large amounts of insecticides, herbicides and fertilizers are commonly used in the area to boost the annual production of the rice. Methods: Mosquito larvae were collected and adults were assayed from the F1 progeny. The resistance status, allele and genotype were characterized using WHO susceptibility testing and PCR methods respectively. Results: The An. gambiae (s.l.) populations from Okyereko are highly resistant to DDT and pyrethroid insecticides, with possible involvement of metabolic mechanisms including the elevation of P450 and GST enzyme as well as P-gp activity. The population was mostly composed of An. coluzzii specimens (more than 96 %) with kdr and ace-1 frequencies of 0.9 and 0.2 %, respectively. Conclusion: This study brings additional information on insecticide resistance and the characterization of An. gambiae (s.l.) mosquitoes from Okyereko, which can be helpful in decision making for vector control programmes in the region.
Description: An article published by Parasites & Vectors (2016) 9:182; DOI 10.1186/s13071-016-1462-0
URI: http://hdl.handle.net/123456789/11097
Appears in Collections:College of Science

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Chabi, J., Baidoo, P. K., Datsomor, A. K., Okyere, D., Ablorde, A., Iddrisu, A., Wilson, M. Dadzie, S. K., Jamet, H.P. and Didaro, J. W. (2016). Insecticide susceptibility of natural populations of Anopheles coluzzi.pdf2.47 MBAdobe PDFView/Open

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