Name: Pyricularia grisea
English: Rice blast fungus; Rice rotten neck; Rice seedling blight; Blast of rice; Oval leaf spot of graminea; Pitting disease; Ryegrass blast; Johnson spot.
Region: worldwide; in 85 countries.
MycologyFungus; plant-pathogenic, causing a serious disease, blast disease or blight disease, of rice, wheat, rye, barley, pearl millet.
TaxonomyMagnaporthe grisea is a complex of at least two biological species; complex members isolated from Digitaria have been more narrowly defined as
Magnaporthe grisea; remaining members of the complex have been renamed Magnaporthe oryzae.