Toxicity of Vapors of Four Chlorinated Hydrocarbon Insecticides to Resistant House Flies12

Abstract

Laboratory studies on nonresistant house flies (Musca domestica L.), flies resistant to DDT only, and flies resistant to several chlorinated hydrocarbon insecticides showed that resistance to vapors of lindane, chlordan, dieldrin, and aldrin was closely correlated with resistance to residues of lindane, and less closely with resistance to residues of DDT. The exposure times required to cause mortality were too long to justify the conclusion that these materials could be used as vapors to control resistant flies.