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Investigating Role of Abiotic Factors on Spinosad Dissipation

Bulletin of Environmental Contamination and Toxicology volume 96, pages 125–129 (2016)Cite this article

Abstract

The effect of abiotic factors on dissipation of spinosad (soil moisture regimes, pH, and light) was studied. Spinosad residues were estimated using high performance liquid chromatography fitted with a UV detector. Under laboratory conditions, half-lives of spinosad were 9.0 and 7.7 days for air dried and field capacity soils, respectively. Percent dissipation of spinosad after 30 days was 47.02, 22.35, 62.5, 68.23 and 76.47 in solution with an aqueous pH of 10.85, 9.15, 6.97, 3.90 and 2.04, respectively. The half-life of spinosad in UV and sunlight was only 1.6 and 5.2 h, respectively. Light, especially the UV component, is an important factor for degradation of spinosad compared to other abiotic conditions.

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Acknowledgments

The authors thank Head, Division of Agricultural Chemicals, IARI, New Delhi for providing support and facilities for the research work.

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  1. Totan Adak

    Present address: Central Rice Research Institute, Cuttack, Odisha, 753006, India

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  1. Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi, India

    Totan Adak & Irani Mukherjee

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  1. Totan Adak
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  2. Irani Mukherjee
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Correspondence to Irani Mukherjee.

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Adak, T., Mukherjee, I. Investigating Role of Abiotic Factors on Spinosad Dissipation. Bull Environ Contam Toxicol 96, 125–129 (2016). https://doi.org/10.1007/s00128-015-1644-z

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  • DOI: https://doi.org/10.1007/s00128-015-1644-z

Keywords

  • pH
  • UV light
  • Moisture
  • Half-life
  • HPLC