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|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.
Wilson, Michael D.
Dadzie, Samuel K.
Jamet, Helen P.
Diclaro, Joseph W.
|Keywords: ||Insecticide resistance|
An. gambiae s.s
|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|
|Appears in Collections:||College of Science|
Files in This Item:
|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.pdf||2.47 MB||Adobe PDF||View/Open|
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