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1 June 2012 Characterization of Mosquito Larval Habitats and Assessment of Insecticide-Resistance Status of Anopheles gambiae senso lato in Urban Areas in Southwestern Ghana
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Abstract

The study was carried out to characterize potential larval habitats in the city of Sekondi with the aim of assessing the relative importance of anthropogenic and natural water bodies as larval habitats. Insecticide-resistance status of Anopheles gambiae senso lato in the southwestern part of the coastal savannah zone in Ghana was also assessed against four different classes of insecticides. Larval surveys were carried out in two communities that are separated by a lagoon. Although the lagoon was a potential mosquito larval habitat, we showed that it was not an important mosquito breeding site. The major larval habitats were anthropogenic, resulting from human behavior. Some of the organically polluted breeding sites were inhabited by both An. gambiae s.l. and Culex quinquefasciatus larvae. The data also showed that An. gambiae s.l. has currently developed a strong resistance to DDT and pyrethroid insecticides in southwestern Ghana, where the species was reported to be susceptible about a decade ago. The use of insecticides in households was implicated as a possible cause of the development of resistance among An. gambiae s.l. populations in the area. The management of insecticide resistance among malaria vectors needs urgent attention if insecticide-treated materials can continue to be used for malaria control.

Andreas Adutwum Kudom, Ben A. Mensah, and Thomas Kwaku Agyemang "Characterization of Mosquito Larval Habitats and Assessment of Insecticide-Resistance Status of Anopheles gambiae senso lato in Urban Areas in Southwestern Ghana," Journal of Vector Ecology 37(1), 77-82, (1 June 2012). https://doi.org/10.1111/j.1948-7134.2012.00202.x
Received: 16 August 2011; Accepted: 1 December 2011; Published: 1 June 2012
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