Bacterial formulations, produced using both Bacillus megaterium and
B. pumilus individually with pharmaceutical technology, were tested
under both greenhouse and field conditions. In the greenhouse testing,
some bacterial formulations, for instance For 7 minus Lac and For 16 minus
Lac, performed as well as freshly prepared bacterial antagonists in
suppress sheath blight disease. In the field testing, For 16 minus Lac was
not effective in suppressing sheath blight development. Failure of the For
16 minus Lac to suppress sheath blight disease in the field trial may be due
to the dilution and inactivation of antibiotics produced by B.
megaterium in the aquatic environment in the rice field and climatic
conditions during the formulation application.