Insecticides may contribute to bigger problems with certain weeds / Fewer poisonous insecticides in the environment -- a win for bees and other animal life / Pesticides: Farming chemicals make insects sick at non-deadly doses--especially in hot weather / Bio-based insecticidal ingredients have the potential to drive ecologically safer pesticides / Hemp shows high promise as potential natural insecticide / Bat die-off led to more insecticide use and more infant deaths in US / Consumer insecticides are useless for fighting cockroach infestations / Consumer-grade insecticide sprays fail to control cockroaches, study shows / Study shows liquid insecticides have limited impact against subterranean termite colonies / Insecticides contribute to drop in butterfly species across US MidWest: Study