Removing the flowers of an invasive shrub from mosquito-prone areas might be a simple way to help reduce malaria transmission, according to a new study published in the open access Malaria Journal. Removing the flowers from villages in Mali decreased the local mosquito vector population by nearly 60%.
The study, carried out in the Bandiagra District in Mali, is the first of its kind to trial a direct environmental manipulation as a way to control mosquito vector populations in areas at risk of malaria transmission.
Progress in malaria control in the past decade can be attributed largely to a massive increase in the number of insecticide based management programmes targeting malaria carrying mosquitoes, using methods that include indoor residual spraying and insecticide impregnated bed nets. The effectiveness of these management techniques is now being compromised by insecticide resistant mosquito populations. In 2012, the UN World Health Organisation (WHO) launched a strategic plan to help fight insecticide resistance in malaria vectors. A crucial part in the management of insecticide resistant mosquito populations is access to current information on insecticide resistant populations. IR Mapper is a new interactive online mapping tool used to track insecticide resistance in mosquitoes. The tool collaborates reports of insecticide resistance in malaria vector mosquitoes into maps which aim to assist vector control strategies. Data consolidation for the programme was conducted by Swiss company Vestergaard Frandsen, the Kenyan Medical Research Institute (KEMRI) and the US Centers for Disease Control and Prevention (CDC). To make this information available to users, an interactive map of all publicly available insecticide resistance data has been developed, with an interface developed by ESRI Eastern Africa