He was awarded the 1992 World Food Prize with his colleague Edward F. Knipling for their combined efforts in the development of the sterile insect technique (SIT).
Their larvae were at the time a major parasite of cattle and caused great losses in US agriculture.
The method was also successfully tested on Curacao in 1954 and controlled the parasite in parts of the United States in the 1960s and 1970s.
Bushland also conducted research into combating lice that spread typhus in New Guinea and the Philippines during World War II.
[1] In 1963, Bushland became the director of the USDA Metabolism and Radiation Research Laboratory in Fargo, North Dakota.