The antifungal activity of secondary lichen metabolites extracted by means acetone and ethanol from Cetraria islandica, Cladonia mitis, C. rangiferina, Pseudevernia furfuracea Usnea dasopoga on the pathogenic fungi Fusarium oxysporum F. avenacuem was examined. compounds tested after their mixture with PDA medium before solidification. most active extracts inhibiting growth fungal mycelia contai...