Abstract
A field study was conducted in Pre-Kharif season 2007 on paddy to determine the persistence of thiamethoxam (12.6%) and lambda cyhalothrin (9.4%) [in a 'Readymix' formulation Alika 247 ZC], following the application of 33 g. a.i. ha⁻¹ (T₁) and 66 g. a.i. ha⁻¹ (T₂). Spraying of insecticide was done during milking stage of the crop (63 days after transplantation). Thiamethoxam and lambda cyhalothrin residues were estimated by HPLC and GLC respectively. The half-life values were 5.2-5.8 and 4.8 days for thiamethoxam and lambda cyhalothrin respectively. No residue was detected in the harvested paddy, straw, grain, and soil samples.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Environmental Monitoring*
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Insecticides / analysis*
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Insecticides / chemistry
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Insecticides / metabolism
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Neonicotinoids
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Nitriles / analysis*
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Nitriles / chemistry
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Nitriles / metabolism
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Nitro Compounds / analysis*
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Nitro Compounds / chemistry
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Nitro Compounds / metabolism
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Oryza / metabolism
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Oxazines / analysis*
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Oxazines / chemistry
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Oxazines / metabolism
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Pyrethrins / analysis*
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Pyrethrins / chemistry
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Pyrethrins / metabolism
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Soil Pollutants / analysis*
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Soil Pollutants / chemistry
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Soil Pollutants / metabolism
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Thiamethoxam
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Thiazoles / analysis*
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Thiazoles / chemistry
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Thiazoles / metabolism
Substances
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Insecticides
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Neonicotinoids
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Nitriles
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Nitro Compounds
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Oxazines
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Pyrethrins
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Soil Pollutants
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Thiazoles
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Thiamethoxam
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cyhalothrin