Selection of Trichoderma spp. Antagonistic to Cylindrocarpon destructans, Pathogen of Ginseng Root Rot Disease

doi:10.16409/j.cnki.2095-039x.2016.02.019

Abstract

Abstract: Cylindrocarpon destructans is one of the most important pathogens of root rot disease of ginseng. Biological control is a potential way for management of the disease. We selected five strains of Trichoderma by confrontation in vitro from 107 strains isolated from ginseng planting and other soils. The chlamydospore preparation of the five strains was applied in ginseng seedbed respectively and seedling rate of ginseng was not affected. After one year of treatment, the disease index of the 5 strain treatments were all below 10, while control was 40.69. After two years of treatment, the disease index of 5 Trichoderma strain treatments was about 13, compared to control 46.84, and the difference between treatment and control was extremely significant level and no differences between 5 strains in statistics. The control effect of 5 strain treatments was over 67%.

Key words: ginseng, Trichoderma spp., Cylindrocarpon destructans, biological control

CLC Number:

S476

CHEN Shuhua, LI Mei, JIANG Xiliang, YI Tao, ZHANG Nianjie, WANG Hao, BAI Longlü. Selection of Trichoderma spp. Antagonistic to Cylindrocarpon destructans, Pathogen of Ginseng Root Rot Disease[J]. journal1, DOI: 10.16409/j.cnki.2095-039x.2016.02.019.

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