By comparing the mean suppressive activity of 14 Paenibacillus isolates against Xcc, it was determined that there were no significant differences between the two different media (Table 2.3) and thereafter the results for both media were combined.
Isolate P16 did not inhibit the growth of any Xcc isolates. In addition, isolates P9 and P25 did not show any significant activity against Xcc.
In contrast to the previous results, isolate P20 only suppressed the growth of Xcc5. Isolates P6, P10, and P24 had significant suppression activity against all but one of the six Xcc isolates (Table 2.5).