>If it is not effective enough, then we are back to poisoning the water with delta-endotoxins, where we know the consequences on things that are not mosquitos a

>If it is not effective enough, then we are back to poisoning the water with delta-endotoxins, where we know the consequences on things that are not mosquitos are far more severe. This is a good point, and probably has more harmful actions behind it. "Don't do $NEWTHING" is not the same as "do nothing." Think of all the things humans already do to reduce the harm from mosquitos: - Bug zappers (which aren't even good at attracting mosquitos) - Draining marshlands - Dumping standing water (toads also use this for laying eggs) - Insect repellent (i.e., spreading harmful chemicals in nature) - Introducing predators Mosquito nets are, AFAICT, the only method without collateral damage.