Sangeetha, C.G. and A. L. Siddaramaiah
White rust, downy mildew and Alternaria blight caused by Albugo candida (Pers.) Kuntze Peronospora parasitica (Pers.) (de Bary) and Alternaria brassicicola (Schw.) Wiltshire respectively are important diseases on Indian mustard causing considerable loss. Maximum temperature positively correlated with disease index of all the three diseases. Maximum temperature from 26-29ºC and average relative humidity of more than 65% favoured the development of all the three disease
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