Larvae

Drones vs. Mosquitoes: Fighting malaria in Malawi

In the middle of a muddy field next to a reservoir in north-western Malawi, a team of scientists are hard at work. Boxes of equipment lie scattered around a patch of dry ground, where a scientist programmes an automated drone flight into a laptop perched on a metal box. The craggy peak of Linga Mountain (‘watch from afar’ in the local language) looms over the lake, casting its reflection in the water.

With a high-pitched whirr of rotor blades, the drone takes off and starts following the shoreline, taking photos as it goes. Once the drone is airborne, the team switch from high-tech to low-tech mode. They collect ladles, rulers and plastic containers and squelch through mud until they reach the water’s edge.

Study: Digitally Managed Larviciding

A new study has found that larval source management (LSM) – treating mosquito breeding habitats – can still be effective in malaria elimination operations, especially with the aid of new digital technologies. LSM has been replaced in Africa by long-lasting insecticidal nets (LLINs) and indoor residual spraying (IRS), but these methods are becoming less effective due to mosquitoes’ growing resistance to insecticides.