India is one of the largest rapeseed–mustard growing countries in the world occupying the third position in area and in production after China and Canada with 12% of world’s total production. Rapeseed-mustard is the second most important oilseed crop in the country after groundnut and accounts for nearly of the total oilseed production in the country. At global level rapeseed–mustard is cultivated on m ha with production of MT. Alternaria blight caused by Alternaria brassicae and Alternaria brassicicola has become one of the important diseases of this crop in the country. | Studies on development of alternaria blight on rapeseed-mustard and spray schedule of fungicide for its management
