PATHOGENICITY AND MANAGEMENT OF EARLY BLIGHT AND WILT IN TOMATO CAUSED BY ALTERNARIA SOLANI AND FUSARIUM OXYSPORUMB. THIPPESWAMY, SOWMYA, H.V AND *M. KRISHNAPPA
A total of 140 seeds samples were collected from different agro-climatic regions of Karnataka during 2005-2009 and analyzed for mycoflora. This crop is susceptible for early blight (Alternaria solani) and wilt (Fusarium oxysporum) diseases. These diseases are seed borne and reduce the yield loss up to 3050%. The pathogenicity test and management was carried out at the department experimental plot. The result shows, A. solani showed 1-10% early blight in one month seedlings, 1-10% in two month seedlings and 20-30% in three months old plants. F. oxysporum in one month seedlings 1-10% wilts, no wilts in two month seedlings and 1-10% wilts in three months old plants. The fungicides were treated at different concentrations (0.5%, 1.0%, 1.5% and 2.0%) and were recorded mycoflora. The systemic fungicides viz., Bavistin and Vitavax, non-systemic fungicides viz., Indofil M-45, Captan and Zineb. Among all the fungicides were tested in SBM method, Bavistin, Captan and Zineb are superior for the inhibition of seed borne pathogens and increase the seed germination at 2% concentration.
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