Mosquito killer

摘要

Insecticide resistance in malarial mosquitoes could be wiped out for good, paradoxically by using slow-killing agents.rnThe World Health Organization recommends fast-acting insecticides for malaria control. But such agents stop mosquitoes from reproducing, giving any insect that resists them an enormous competitive advantage. As this drives the evolution of resistance, Andrew Read at Pennsylvania State University in University Park decided to examine what happened if this selection pressure was removed by only killing elderly mosquitoes that had already laid eggs.