In vitro evaluation of some essential oil and Trichoderma viride against Stem rot (Sclerotium rolfsii) of Groundnut

Abstract

Three essential oils and one bio-agent were investigated in order to control groundnut plants against Sclerotium rolfsii causing stem rot. The study was conducted in plant pathology laboratory, SHUATS during 2019. The essential oils i.e. Neem oil, Eucalyptus oil, Clove oil, bio-agent (i.e. Trichoderma viride) and their combinations were evaluated at 5% concentrations and studied the radial growth of the pathogen. The complete inhibition was obtained with clove oil + T. viride, Clove oil, Eucalyptus oil+ Trichoderma viride, Eucalyptus oil at all selected concentration. Trichoderma viride was also screened against S. rolfsii following dual plate culture technique.