The Economist: The war on malaria: A charge that sticks
“…Using static electricity [to attach insecticides to the surface of mosquito nets] … means all of the insecticide is held on the surface of a net’s fibers. Much larger doses can thus be transferred to an insect which blunders into the net. In addition, a wide range of insecticides — and even, possibly, the spores of a fungus harmless to people but lethal to mosquitoes — can be applied to the fibers…” (9/5).