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Chlorpyrifos Root Dip Treatment Effect on Population of Singhara Beetle, Galerucella birmanica Jacoby, Natural Enemies and Yield of Water Chestnut

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Abstract

Leaf beetle commonly called Singhara beetle, Galerucella birmanica, is the main insect pest in the water chestnut crop. In this experiment, we studied the control efficacy of Chlorpyrifos seedling root dip against Singhara beetle and its effect on the density of natural enemy population and yield of water chestnut under the field condition during 2021. The results revealed that seedling root dip with Chlorpyrifos @0.05% (RAMBAN®) effectively controls the Singhara beetle, where the minimum number of all the life stages was recorded on root dip-treated plants, and duration of root dip has no significant effect on Singhara beetle incidence. Seedling root dip has no adverse effect on natural enemy populations such as spiders and water striders. Further, the highest yield was recorded from 6 h of root dip treatment. Hence, the seedling root dip of water chestnut protects the crop against early stage infestation by Singhara beetle, thereby reducing the significant yield loss.

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Acknowledgements

The authors are thankful to the Director, Indian Council of Agricultural Research-Research Complex for Eastern Region, Patna, for providing the facilities.

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Authors and Affiliations

  1. ICAR-RCER, Research Centre for Makhana, Darbhanga, 846005, Bihar, India

    Vinod K. Padala, Manoj Kumar, S. M. Raut & I. S. Singh

  2. ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India

    Ramya N

  3. Professor Jayashankar Telangana State Agricultural University, Hyderabad, 500030, Telangana, India

    Mandla Rajashekhar

  4. ICAR-Indian Grassland and Fodder Research Institute, Jhansi, 284003, Uttar Pradesh, India

    M. C. Keerthi

  5. ICAR-Research Complex for Eastern Region, Patna, 800014, Bihar, India

    Mohd. Monobrullah

Authors
  1. Vinod K. Padala
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  2. Ramya N
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  3. Mandla Rajashekhar
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  4. M. C. Keerthi
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  5. Manoj Kumar
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  6. S. M. Raut
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  7. I. S. Singh
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  8. Mohd. Monobrullah
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Correspondence to Vinod K. Padala.

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Significance Statement In this experiment, we studied the effect of seedling root dip with Chlorpyrifos @0.05% against Singhara beetle and its impact on the density of natural enemy population and yield of water chestnut. The treated seedlings showed less incidence of Singhara beetle up to 28 days after transplanting, and no adverse effect on natural enemies such as spiders and water striders was observed. Further, the highest yield was recorded from 6 h of root dip treatment. Hence, that seedling root dip with Chlorpyrifos @0.05% gives better protection to water chestnut crop during the early growing period.

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Padala, V.K., N, R., Rajashekhar, M. et al. Chlorpyrifos Root Dip Treatment Effect on Population of Singhara Beetle, Galerucella birmanica Jacoby, Natural Enemies and Yield of Water Chestnut. Natl. Acad. Sci. Lett. 45, 379–382 (2022). https://doi.org/10.1007/s40009-022-01153-3

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  • DOI: https://doi.org/10.1007/s40009-022-01153-3

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