Efficacy of fungicides and bioagent against Rhizoctonia bataticola

Abstract

The experiment was conducted to manage on control the pathogen which has caused severe disease in this plant. In this experiment fungicides were used at different concentration viz., Carbendazim @ 0.1% and Carboxin + Thirum @ 0.3% were efficient in completely inhibiting the growth of Rhizoctonia bataticola (100%) in vitro and also biocontrol agent Trichoderma viride was found antagonistic and the in vitro mycelia inhibition of Rhizoctonia bataticola was 50.9%. In the pot experimentation the mycorrhizal spores was recorded as 3.3, 5.3, 9.0, 13.3 and 14.0 at 15, 30, 45, 60 and 75 DAS respectively in the treatment of VAM @ 5kg/ha alone and no mycorrhizal spores was obtained in control treatment during each observation.