James Gordon Horsfall (January 9, 1905 — March 22, 1995) was an American biologist, a plant pathologist and an agriculturist. Horsfall was most noted for the discovery of organic fungicides which changed the way crops' fungus diseases are treated worldwide. Prior to his discoveries these diseases were treated with heavy metals which as we know now are poisonous to humans. Horsfall was a member of the National Academy of Sciences.
The New York Times called Horsfall a "leading plant pathologist".
Life and career
Horsfall was born in Mountain Grove, Montana and was raised in Monticello, Arkansas.
He graduated from the University of Arkansas with a B.S. degree in 1925. He received his doctorate from Cornell University in 1929.