Keith Stanfield is a person.
Marie Beatrice `` Bea '' Schol-Schwarz -LRB- 12 July 1898 -- 27 July 1969 -RRB- was the Dutch phytopathologist who discovered the causal fungus of Dutch elm disease .. Dutch. Dutch people. phytopathologist. phytopathology. Dutch elm disease. Dutch elm disease. She first studied pathogens afflicting peanuts and later the fungus Phialophora .. peanuts. Arachis hypogaea. Phialophora. Phialophora