Nasution, Ariq Fadhil ShidiqiNurulita, YuanaRafi, Mohamad2024-07-032024-07-032023-12PerpustakaanElfitrahttps://repository.unri.ac.id/handle/123456789/11385Trichoderma asperellum LBKURCC1 and Penicillium sp. LBKURCC34 are a fungi isolated from plantation soil and peat soil in Riau Province. This study aims to examine the antagonistic activity between local isolates of Riau fungi; LBKURCC1 and LBKURCC34. The aim of the antagonistic test is to measure and determine the ability of antagonistic fungi to suppress the growth and development of pathogenic fungi or fungi tested in close proximity to the laboratory scale co-culture method. Antagonistic tests can be carried out in vitro using the dual culture method. Antagonistic tests are carried out for 14 days and observations are made in control and test petris. In the antagonistic test, the LBKURCC1 fungus showed stronger antagonistic inhibition than the LBKURCC34 fungus.enantagonisticantimicrobialco-cultureArticle