The objective of the research was to know the ability of compost extract in suppressing the growth of Aspergillus flavus Link, Colletotrichum capsici (Syd.) Bult. Et Bisb, Fusarium oxysporum Schlecht and Rigidoporus lignosus (Klotzch) Imazeki. The research was conducted in Phytopathological Laboratory, Faculty of Agriculture, Sriwijaya University Inderalaya, from December 2004 to April 2005. Th…