Similarly, we
found infection of pine seedlings with two isolates of B. bassiana
originally obtained from mature pine trees could not be detected
using the described experimental methods beyond 9 months Beauveria was recovered from only one plant (in a sterile root sample)
at 9 months. There was no obvious change in plants infected
with B. bassiana in the current study, including no apparent differences
in growth (data not shown). There is no question that B. bassiana
can be endophytic in mature Pinus trees and even see