Biological Control Screens
Forty-one of the 244 strains tested in preliminary tri-als (Table 1) were chosen for further study based on their performance (Table 2). The disease severity of plants bacterized with these strains ranged from 0.75 to 3.67, while disease severity of control plants ranged from 2.()8 to 3.67. Several of these strains were chosen because of apparent growth promotion. Of the 41 strains, 27% belonged to the genus Burkholderia, 24% to the genus