Potential antagonistic phylloplane fungi from Stevia rebaudiana Bert. as bio-control of aerial blight disease caused by Rhizoctonia solani

  • Reshu Chauhan
  • Navneet
  • Shiv Shanker GautamEmail author
Short Communication


Stevia rebaudiana Bert. is, a natural low calorie sweetener, subjected to isolate potential fungal antagonist. Phylloplane fungi were used as biocontrol of aerial blight disease caused by Rhizoctonia solani. A survey of fungal pathogens of S. rebaudiana was conducted in three different regions of Uttarakhand state. R. solani was the causative agent of aerial blight on Stevia leaves and found pathogenic to the weed. The morphological study and antagonistic tests were executed in this study. Twenty-two fungal species were isolated and tested as antagonist against R. solani. Trichoderma hamatum, Aspergillus sp., Curvularia lunata and Emericella nidulans antagonised R. solani by overgrowing on it. Metabolites produced by thirteen fungal species affected the pathogen by antibiosis. This finding showed that T. hamatum and Aspergillus sp. exhibited the highest antagonist effects on R. solani and could be helpful in the management of aerial blight disease of Stevia.


Aerial blight disease Antagonistic activity Phylloplane fungi Rhizoctonia solani Stevia rebaudiana 



The authors are grateful to the Head, Department of Botany and Microbiology, Gurukul Kangri University, Haridwar for providing the laboratory facilities to enable this research.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Indian Phytopathological Society 2019

Authors and Affiliations

  1. 1.Department of Botany and MicrobiologyGurukul Kangri UniversityHaridwarIndia
  2. 2.Department of MicrobiologyDev Bhoomi Group of InstitutionsDehradunIndia

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