Clip Arts Related To : Dichlordiphenyltrichloroethane, commonly known as DDT, is an organochlorine insecticide widely used in the mid-20th century to control pests, especially mosquitoes and agricultural insects. It was first synthesised in 1874 by German chemist Othmar Zeidler, but its insecticidal properties were not discovered until 1939 by Swiss chemist Paul Hermann Müller.Clipart, storybook ilustration
