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  • Title: Determination of the dissipation dynamics and residue behaviors of chlorantraniliprole in sugarcane and soil by LC-MS/MS.
    Author: Wang D, Zhang K.
    Journal: Environ Monit Assess; 2017 Aug; 189(8):372. PubMed ID: 28681322.
    Abstract:
    Chlorantraniliprole (CAP) 0.03% granule insecticide-fertilizer is a novel formulation that can not only improve the yield of sugarcane, but can also effectively control sugarcane borer for a long period. The present study was carried out to study the persistence pattern of CAP on sugarcane, sugarcane plants, and soil. The residues of CAP were estimated using liquid chromatography with tandem mass spectrometry (LC-MS/MS). Following application of CAP 0.03% granule insecticide-fertilizer at 112.5 and 168.75 g active ingredient (a.i.)/ha, the final residues of CAP in soil were 0.008-0.053 mg/kg at sites in Guizhou and Guangxi; residual tests of CAP at both sites after 2 years showed that the final residue of CAP in sugarcane was lower than 0.011 mg/kg, which was lower than the maximum residue levels (MRL) set by China (0.05 mg/kg). The half-lives of CAP in soil were from 8.89 to 12.38 days at the recommended dose of 168.75 g a.i./ha at sites in Guizhou and Guangxi. The maximum CAP residues in sugarcane plants in Guizhou were obtained on the seventh day; the residual concentrations were 0.222 and 0.156 mg/kg in 2015 and 2016, respectively. The maximum CAP residues in sugarcane plants in Guangxi were obtained on the fifth day and the residual concentrations were 0.041 and 0.020 mg/kg in 2015 and 2016, respectively.
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