Paul Hermann Müller also known as Pauly Mueller ( 12 January 1899 -- 13 October 1965 ) was a Swiss chemist who received the 1948 Nobel prize in Physiology or Medicine for his 1939 discovery of insecticidal qualities and use of DDT in the control of vector diseases such as malaria and yellow fever .
Paul Hermann Müller ( January 12 , 1899 -- October 12 , 1965 ) was an Swiss chemist . He won the Nobel Prize in Physiology or Medicine in 1948 for his discovery of insecticidal qualities and use of DDT in the control of vector diseases .