Parasites and Vectors (2011) 4 (107) - Insecticide resistance in ...

Richard H. Hunt, Godwin Fuseini, Steve Knowles, Joseph Stiles-Ocran, Rolf Verster, Maria L. Kaiser, Kwang Shik Choi, Lizette L. Koekemoer and Maureen Coetzee (2011)
Insecticide resistance in malaria vector mosquitoes at four localities in Ghana, West Africa
Parasites and Vectors 4 (107)
Abstract: Background
Malaria vector control programmes that rely on insecticide-based interventions such as indoor house spraying with residual insecticides or insecticide treated bed nets, need to base their decision-making process on sound baseline data. More and more commercial entities in Africa, such as mining companies, are realising the value to staff productivity of controlling malaria transmission in their areas of operation.
This paper presents baseline entomological data obtained during surveys conducted for four mining operations in Ghana, West Africa.
Results
The vast majority of the samples were identified as Anopheles gambiae S form with only a few M form specimens being identified from Tarkwa. Plasmodium falciparum infection rates ranged from 4.5 to 8.6% in An. gambiae and 1.81 to 8.06% in An. funestus. High survival rates on standard WHO bioassay tests were recorded for all insecticide classes except the organophosphates that showed reasonable mortality at all locations (i.e. > 90%). The West African kdr mutation was detected and showed high frequencies in all populations.
Conclusions
The data highlight the complexity of the situation prevailing in southern Ghana and the challenges facing the malaria vector control programmes in this region. Vector control programmes in Ghana need to carefully consider the resistance profiles of the local mosquito populations in order to base their resistance management strategies on sound scientific data.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Full text of article
Database assignments for author(s): Lizette L. Koekemoer, Maureen Coetzee, Kwang Shik Choi

Research topic(s) for pests/diseases/weeds:
pesticide resistance of pest

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Anopheles gambiae		Ghana
	Anopheles arabiensis		Ghana
	Anopheles funestus		Ghana