Cucurbit Genetics Cooperative Report 6:73-74 (article 37) 1983 J. E. Ferguson, D. C. Fischer, and R. L. Metcalf Departments of Entomology and Horticulture, University of Illinois, Urbana-Champaign, IL 61801 The tetracyclic triterpenoid cucurbitacins, bitter substances of the Cucurbitaceae, are highly toxic to mammals with intraperitoneal median lethal dose values for pure Cucs in the mouse […]