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Issue 23
March , 2010
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Insecticide beats DDT in early trials

Source: Science and Development Network,ENN, Date: February , 2010

Malaria researchers in Benin say they may have found a replacement for DDT in areas where mosquitoes are resistant to common insecticides.Indoor residual spraying (IRS) of insecticides is a major part of malaria control. But worries over toxicity and environmental persistence have led to calls for DDT to be phased out, and mosquitoes are growing resistant to widely used pyrethroid insecticides. Alternatives are expensive and short-lived.Researchers writing in Malaria Journal this month (8 February) say that a modified version of the insecticide chlorpyrifos-methyl (CS) could provide a solution.CS is too short-lived to be feasible or cost-effective for malaria control when applied directly. But coating tiny droplets of it using a process known as microencapsulation boosts its effectiveness and longevity.


 





 

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