Formation of apressoria-like structures
enabled the hyphae of Trichoderma strains to firmly attach to the
surface of its host mycelium. However, some antagonists (T. koningi
MTCC 796, T. hamatum NABII Tha 1) used different mechanism
against S. rolfsii just touched the hyphae without coiling, while, T.
pseudo koningii showed spore around pathogen not attached to
hyphae (Fig. 3).