1946 6 July 22/1 ‘D.D.D.’ or ‘T.D.E.’ The compound 2.2-bis(p-chlorphenyl)1,1-dichlorethane..has been shown to be about as toxic as D.D.T. to mosquito larvæ in laboratory tests.
1970 1 Jan. 16/1 Much of this case also applies..to the other ‘hard’ organochlorine insecticides: aldrin,..BHC and TDE (Rhothane).