Using the plate confrontation assay,fifteen strains with antagonistic effect on Alternaria panax Whetz were screened out of 113 bacteria isolated from the ginseng rhizosphere soil of Wanliang region of Jilin province.The plate-confrontation method and the growth speed rate method were used for preliminary screening and antimicrobial test in vitro.Pot trials were carried out to assess the inhibitory activity of strain ND-60 in vivo.The results showed that the inhibition rate of strain ND-60 fermentation brot...