Background: Biocontrol agents are regarded as promising and environmental friendly approaches as
agrochemicals for phytodiseases that cause serious environmental and health problems. Trichoderma
species have been widely used in suppression of soil-borne pathogens. In this study, an endophytic
fungus, Trichoderma gamsii YIM PH30019, from healthy Panax notoginseng root was investigated for its
biocontrol potential.