DISEASES CAUSAL ORGANISM Blast Pyricularia grisea Seedling blight / leaf blight Helmithosporium nodulosum Wilt / foot rot Sclerotium rolfsii Downy mildew/Green ear/Crazy top Sclerospora macrospora Smut Melanopsichium eleusinis Mottle streak Mottle streak virus 1. BLAST – Pyricularia grisea Symptoms The pathogen attacks the crop from seedling stage to the time of grain formation. Characteristic spindle-shaped […]