strains of INA bacteria were isolated from 68 species of plants in 17 provinces,cities and autonomous regions in China during 1986 to 1994. The identification results show that they belonged to 17 species(or pathovars)of 3 genera respectively.Among them,.133 strains are Erwinia ananas. accounting for 53.2%of total amount.The next group is Pesudomonas syingae pvs.The total is 70 strains,accounting for 28% of total amount.The other species of INA bacteria have 47 strains,accounting for only 18. 8% of total am...