To evaluate the ability of T. gamsii 6085, T. gamsii 6317
and T. velutinum 4837 to prevent DON production by F.
graminearum 124, competition tests on rice were performed.
After 7 days, there was no significant difference in the
amount of DON produced in the presence/absence of
antagonists (tested by ANOVA; Table 2). After 14 days, the
positive antagonistic results previously achieved on agar
plates were confirmed. Among the three isolates, T. gamsii
6085 showed the best capacity for inhibiting DON
production, reducing the amount of DON to almost 92 %
compared with the control. In the presence of T. gamsii 6317
and T. velutinum 4837, F. graminearum 124 produced 60
and 67 % less DON, respectively, than when alone.