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Published yearly: 

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ISSN: 2320-964X (Online) 

ISSN: 2320-7817  (Print)



Dr. Santosh Pawar 




Int. Journal of Life Sciences, 2016; 4(4):579- 582   |    Available online, February 06, 2017

Efficacy of Trichoderma  against  violet root rot disease of tea caused by Sphaerostilbe  repens  



Das Jyotsna


Department of Botany, Alipurduar College, Dist. Alipurduar, Pin-736122. W.B., India



Received: 05.11.2016   |      Accepted: 24.12.2016       |         Published : 06.02.2017

Trichoderma viride (T. viride) and Trichoderma harzianum (T. harzianum) were screened against Sphaerostilbe repens (S. repense) causing violet root rot disease of tea  through in vitro and in vivo method.  In dual culture method, T. viride lysed  S. repense and T. harzianum also ceased the growth of the pathogen. In case of field trials three varieties of tea TV-26 (Tocklai Variety), TV-18 and T-78 were taken. Antagonists and pathogen were applied in the rhizosphere in different combination and disease index was made after different days of interval. Rhizosphere of potted plants of one susceptible variety Teenali-17 were treated with same combination of antagonist and pathogen and efficacy of antagonists were proved through immunodiagnostic method like ELISA and DOT-BLOT.

Key words: Biocontrol agents, Tea, Trichoderma, Sphaerostilbe repens.


Editor: Dr. Arvind Chavhan


Cite this article as:

Das Jyotsna  (2016) Efficacy of Trichoderma  against  violet root rot disease of tea caused by Sphaerostilbe  repens, International J. of Life Sciences, 4 (4): 579-582.




Financial assistance received from the Department of Biotechnology (DBT), Ministry of Science and Technology, Government of India, for carrying out serological detection of pathogens of tea root diseases and its management is gratefully acknowledged. Heartfelt gratitude is also expressed to Professor B.N Chakraborty and Professor Usha Chakraborty, Department of Botany, University of North Bengal, supervisors of the work.


Conflicts of interest: The authors stated that no conflicts of interest.



Copyright: © 2016 | Author(s), This is an open access article under the terms of the Creative Commons Attribution-Non-Commercial - No Derivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.


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