The results indicated that T. gamsii YIM PH30019 was nonpathogenic to the host, presented
appreciable biocontrol efficacy, and could tolerate chemical fertilizer concentrations of up to 20%.
T. gamsii YIM PH30019 displayed antagonistic activities against the pathogenic fungi of P. notoginseng via
production of VOCs. On the basis of gas chromatography-mass spectrometry, VOCs were identified as
dimethyl disulfide, dibenzofuran, methanethiol, ketones, etc., which are effective ingredients for
antagonistic activity. T. gamsii YIM PH30019 was able to improve the seedlings’ emergence and protect
P. notoginseng plants from soil-borne disease in the continuous cropping field tests.