Edward Knipling

Edward F. Knipling
Born	March 20, 1909 Victoria, Texas, U.S.
Died	March 17, 2000 (aged 90) Arlington, Virginia, U.S.
Fields	Entomology
Alma mater	Texas A&M University Iowa State University
Notable awards	National Medal of Science Japan Prize

Edward F. Knipling (March 20, 1909 – March 17, 2000) was an American entomologist, who along with his longtime colleague Raymond C. Bushland, received the 1992 World Food Prize for their collaborative achievements in developing the sterile insect technique for eradicating or suppressing the threat posed by pests to the livestock and crops that contribute to the world’s food supply. Knipling's contributions included the parasitoid augmentation technique, insect control methods involving the medication of the hosts, and various models of total insect population management. Knipling was best known as the inventor of the sterile insect technique (SIT), an autocidal theory of total insect population management. The New York Times Magazine proclaimed on January 11, 1970, that "Knipling...has been credited by some scientists as having come up with 'the single most original thought in the 20th century.'"

Knipling was born on March 20, 1909, in Victoria, Texas. As a youth raising cattle with his father, he saw firsthand the devastation that the screwworm fly and other pests wreaked on cattle herds and cotton crops. Following graduation from Texas A&M University and graduate studies at Iowa State University, Knipling began researching the screwworm fly in 1931 as a U.S. Department of Agriculture entomologist in Texas, where he met Bushland. Together, the men theorized about possibly breaking the pest’s lifecycle by inducing genetic defects, but their research was temporarily suspended by the outbreak of World War II.

During the war, Knipling’s research was diverted to support U.S. Army efforts to repel and control insects that threatened Allied troops with diseases including typhus and malaria. Credited with leading the USDA team that developed DDT as an effective control of body lice and weapon against typhus, Knipling won the 1947 U.S. Medal of Merit and the 1948 King’s Medal for Service from the United Kingdom for these achievements.

After the war, Knipling received a Ph.D. in entomology from Iowa State University and moved to Washington, DC, to lead USDA entomology research. In this capacity, he continued working with Bushland to complete the development of SIT in the early 1950s. Knipling remained at the USDA until 1973, eventually serving as the top entomological researcher in the Agricultural Research Service. For 27 years thereafter, he remained active as a USDA consultant and collaborator, contributing significantly to new principles of pest insect management.

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