The US-EPA is issuing draft reports for public comment on the effects of pesticides on endangered species. Three organophosphate insecticides, chlorpyrifos, malathion and diazinon are the first pesticides studied. The potential for effects on endangered species from these pesticides is high, because of use as mosquito adulticides. Thus, there may be some trade offs between endangered species protections and efforts to protect the public from mosquito vectored diseases.
Good mosquito control typically targets larval populations as the first line of defense. If done properly, adulticides can be avoided, thus avoiding potential conflict. If these chemicals are used as adulticides, more consideration of effects on non-target species and new rules to minimize those effects are likely next steps.