Efficacy of fungicides and bioagents against Curvularia lunata causing blight of coleus under laboratory conditions

Experiment was conducted to assess the effect of different bioagents like Trichoderma viride, T. harzianum and Pseudomonas fluorescence and fungicides like Carbendazim (0.1%), Curzate M-8 (0.2%), Topsin M (0.2%), Chlorothalonil (0.2%), Metalaxyl (0.2%), Tridemorph (0.1%), Propiconazole (0.1%), Mancozeb (0.2%), Copper oxychloride (0.3%), Thiram (0.3%), Carbendazim + Mancozeb (0.2%), Tricyclazole + Mancozeb (0.2%) and Zineb + Hexaconazole (0.2%) against Curvularia lunata. After 7th days the T. viride recorded maximum inhibition 60.81% followed with T. harzianum (50.71%) and minimum inhibitory effect was observed in P. fluorescens (33.41%). Among all the systemic non systemic and combination products, Complete inhibition was achieved in tridemorph, propiconazole, dithane, carbendazim + mancozeb, tricyclozole + mancozeb and zineb + hexaconazole and minimum inhibition (10.17%) was recorded in carbendazim 0.1 per cent while 65.33 mm radial mycelial growth was recorded in control.