[Objective] The plant resources with inhibition effect was screened on plant pathogen so as to search new type botanical fungicide.[Method] With the extracts of acetone and ethanol of 32 plants as materials and with 5 plant pathogens of Fusarium xysporum f.sp.diathi,Fusariun oxysporum,Alternaria alternata(Fries) Keissler,Alternaria sp.,Fusarium decemcellulare Brick as the tested strains,the biological activity of plant extract was determined on 5 pathogens.[Result] When the tested quality concn.was 0.035 g/...