SCHRADAN (octamethyl pyrophosphoramide) and parathion (OO-diethyl O p-nitrophenyl phosphorothionate) are converted by insects or mammals into inhibitors of cholinesterase. In mammals the liver is ...

Skip to content viewer section. Fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith), populations in the southeastern United States are resistant to carbaryl, methyl parathion, trichlorfon, and ...