US Patent 5,130,326
United States Patent and Trademark Office
The United States of America as represented by the Secretary of (Washington, DC) ; University of Iowa Research Foundation (Iowa City, IA, US) ; Biotechnology Research & Development Corporation (Peoria, IL)
Indole compounds named "sulphinine" and "secopenitrem" have been isolated from the sclerotia of from fungi Aspergillus sulphureus. An indole compound named "aflatrem B" has been isolated from the sclerotia of the fungi Aspergillus flavus. The compounds are effective for controlling Coleopteran and Lepidopteran insects.
Laakso, Jodi A.; Tepaske, Mark R.; Dowd, Patrick F.; Gloer, James B.; and Wicklow, Donald T. Sulpinine, secopenitrem B and aflatrem B antiinsectan metabolites. US Patent 5,130,326 filed July 19, 1991 and issued July 14, 1992. https://ir.uiowa.edu/patents/95