However, conidia were
5-10 times more effective than mycelial
dust in producing infection (4).
Chattopadhyay and Das Gupta (2)
showed that production of conidia by B.
oryzae was favored by media either rich
in or made exclusively of plant parts.
Sharma and Singh (11) reported that rice
husk agar and near ultraviolet radiation
were required for production of conidia.
Various investigations in our laboratory