Abstract:Three antagonistic bacteria strains(F1,HN10 and ZCb)against Fusarium oxysporum f.sp.benincasae(FOC)were isolated from orchard soil.The result showed that the width of inhibitive zones on plates ranged from 9.6 mm to 14.7 mm for antagonistic bacteria strains F1,HN10 and ZCb under the concentration of original fermentation culture,50-fold and 100-fold dilution.The inhibitive rate of the strain HN10 and ZCb to the germination of spores of FOC was between 13.7 % and 58.4 %.