Journal of Biological Control

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Biocontrol potential of three antagonists against downy mildew of pearl millet caused by Sclerospora graminicol (Sacc.) Schoret


Affiliations
1 Division of Plant Pathology, Rajasthan Agricultural Research Institute, Durgapura, Jaipur – 302018, Rajasthan, India
2 Residue Analysis Laboratory, Division of Entomology, Durgapura, SKN Agriculture University, Jobner, Jaipur – 303329, Rajasthan, India
 

The efficacy of three bio-control agents viz., Trichoderma viride, Trichoderma harzianum and Pseudomonas fluorescens were evaluated against downy mildew of pearl millet in glasshouse as well as in field conditions at research farm, Rajasthan Agricultural Research Institute, Durgapura (Jaipur) during cropping seasons of kharif 2016 and 2017. The seed treatment with Trichoderma viride (@ 6 g/kg seed) followed by one spray of Pseudomonas fluorescens (@ 1 x 108 cfu/ml) 21 days after sowing significantly reduced the downy mildew incidence and increased the grain and fodder yield. Seed treatment with Trichoderma harzianum followed by one spray of Pseudomonas fluorescens (@ 1 x 108 cfu/ml) 21 days after sowing were the next in reducing the downy mildew incidence at significant level.

Keywords

Biocontrol agents, downy mildew, pearl millet, Pseudomonas, Trichoderma
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  • Biocontrol potential of three antagonists against downy mildew of pearl millet caused by Sclerospora graminicol (Sacc.) Schoret

Abstract Views: 275  |  PDF Views: 138

Authors

Saini K. K.
Division of Plant Pathology, Rajasthan Agricultural Research Institute, Durgapura, Jaipur – 302018, Rajasthan, India
Mathur A. C.
Division of Plant Pathology, Rajasthan Agricultural Research Institute, Durgapura, Jaipur – 302018, Rajasthan, India
Sharma R. S.
Division of Plant Pathology, Rajasthan Agricultural Research Institute, Durgapura, Jaipur – 302018, Rajasthan, India
Virendra Kumar
Division of Plant Pathology, Rajasthan Agricultural Research Institute, Durgapura, Jaipur – 302018, Rajasthan, India
Bagri R. K.
Division of Plant Pathology, Rajasthan Agricultural Research Institute, Durgapura, Jaipur – 302018, Rajasthan, India
Vishnu Gautum
Residue Analysis Laboratory, Division of Entomology, Durgapura, SKN Agriculture University, Jobner, Jaipur – 303329, Rajasthan, India

Abstract


The efficacy of three bio-control agents viz., Trichoderma viride, Trichoderma harzianum and Pseudomonas fluorescens were evaluated against downy mildew of pearl millet in glasshouse as well as in field conditions at research farm, Rajasthan Agricultural Research Institute, Durgapura (Jaipur) during cropping seasons of kharif 2016 and 2017. The seed treatment with Trichoderma viride (@ 6 g/kg seed) followed by one spray of Pseudomonas fluorescens (@ 1 x 108 cfu/ml) 21 days after sowing significantly reduced the downy mildew incidence and increased the grain and fodder yield. Seed treatment with Trichoderma harzianum followed by one spray of Pseudomonas fluorescens (@ 1 x 108 cfu/ml) 21 days after sowing were the next in reducing the downy mildew incidence at significant level.

Keywords


Biocontrol agents, downy mildew, pearl millet, Pseudomonas, Trichoderma

References





DOI: https://doi.org/10.18311/jbc%2F2020%2F25991