Screening of Antagonistic Trichodemar Strain Against Stem Blight of Schizonepeta tenuifolia Briq. and Evaluation of Its Biocontrol Effect

doi:10.7668/hbnxb.2009.S2.054

Abstract

Abstract: Two Trichoderma viride strains, M3 and Tv04-2, were identified from sixteen Trichoderma strains that showing strongly antagonist activity to Phytophthora nicotianae of Schizonepeta tenuifolia Briq. by antagonistic tests, and the pathogen-inhibition ratio were 83.2% and 78.2%, respectively. Further research showed that, the bio-control effect of Trichoderma strain M3 against Phytophthora nicotianae was higher than Trichoderma strain Tv04-2 significantly. Results indicated that Tridroderma viride strain M3 having expecting biocontrol potential, and can be used as a biocontrol candidate to Phytophthora nicotianae of Schizonepeta tenuifolia Briq.

Key words: Sehizonepeta tenuifolia Briq., Stem blight, Trichoderma spp., Control effect

CLC Number:

S476

YI Xi-xi, DING Wan-long, LI Yong. Screening of Antagonistic Trichodemar Strain Against Stem Blight of Schizonepeta tenuifolia Briq. and Evaluation of Its Biocontrol Effect[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.7668/hbnxb.2009.S2.054.

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http://www.hbnxb.net/EN/Y2009/V24/IS2/240

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