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Pesticide Research Journal
Year : 2019, Volume : 31, Issue : 2
First page : ( 266) Last page : ( 270)
Print ISSN : 0970-6763. Online ISSN : 2249-524X.
Article DOI : 10.5958/2249-524X.2019.00037.2

Persistence of Fipronil as Affected by Microbial Community of a Sugarcane Field Soil

Kumar Deepak, Singh Shashi Bala*

Division of Agricultural Chemicals, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India

*Corresponding author E-mail: shashi.sbsagch@gmail.com

Online published on 8 January, 2020.

Abstract

Persistence of fipronil in sterile and non sterile soil, collected from sugarcane field of Baghpat district, U.P with a history of fipronil application, is reported. The study was conducted till 120 d at the level of 1.0 μg g−1 soil. Recovery of fipronil from the soil ranged between 87.7–95.6 per cent at 0.1 to 1.0 μg g−1 fortification levels when analysed by gas chromatpgraphy (GC-ECD). Limit of quantification (LOQ) of the method was found to be 0.002 μg g. The DT50 (50% disappearance time) of fipronil in sterile and non sterile soils were 115.5 and 46.2 d, respectively. A vast difference in the half life values in the sterile and the non sterile soils indicated the presence of potential microbes for fipronil degradation.

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Keywords

Fipronil, persistence, sugarcane field soil, sterile, non sterile.

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