Risk Analysis in the Release of Biological Control Agents: Antagonistic Fusarium oxysporum as a Case Study. M. Lodovica Gullino, University of Torino, Italy. Quirico Migheli, and Monica Mezzalama University of Torino, Italy. PLANT DIS. 79:1193. Copyright 1995 The American Phytopathological Society. DOI: 10.1094/PD-79-1193.