Rice is the staple
food for more than half of world's population. However
over 90 percent of the rice in the world is produced
and consumed in Asian countries. Rice is
known to be attacked by many diseases and some of
them are seed borne. Brown leaf spot of rice caused by
Drechslera oryzae (Breda de Haan) (Subram. and
Jain) is one of the major fungal disease of rice which
occurs in almost all the rice growing areas of the country