Page "DDT" Paragraph 38

Organophosphate and carbamate insecticides, e. g. malathion and bendiocarb, respectively, are more expensive than DDT per kilogram and are applied at roughly the same dosage.

Pyrethroids such as deltamethrin are also more expensive than DDT, but are applied more sparingly ( 0. 02-0. 3 g / m < sup > 2 </ sup > vs 1-2 g / m < sup > 2 </ sup >), so the net cost per house is about the same over 6 months.