Blast is able to infect several parts of rice
from root to leaf leading to severe loss of yield up to
50% when the disease occurs in endemic proportions
(Sesma and Osbourn, 2004). Up to date, more than 50
gramineous hosts including economical crops such as
rice (Oryza sativa L.), wheat (Triticum aestivam) and
millets (Eleusine spp., Echinochoa spp., Panicum spp.
and Setaria spp.) have been reported and believed to
be one factor promoting the pathogen diversity