Abstract
The residues of flubendiamide from berseem were extracted and cleaned up by the QuEChERS approach and analysed by liquid chromatography/mass spectrometry (LC-MS/MS). The dissipation studies on berseem were carried out by application of flubendiamide at five different dosages i.e. 24, 36, 48, 72 and 96g a.i. ha(-1). The residues reached below determination limit (BDL) of 0.01mgkg(-1) in 7, 10, 10, 15 and 15days for 24, 36, 48, 72 and 96g.a.i. ha(-1)dosages, respectively. Half-life (t1/2) of flubendiamide on berseem was observed to be 1.08, 1.88, 1.94, 2.26 and 2.27days, respectively, at 24, 36, 48, 72 and 96g a.i. ha(-1). Theoretical maximum residue contributions (TMRC) values reached below the maximum permissible limit (MPI) for 3, 5 and 7days in treatments at 24, 36 and 48g.a.i. ha(-1), respectively, whereas in case of higher dose treatments i.e. 72 and 96g a.i. ha(-1), the residues of flubendiamide reached below MPI after 10days of treatment. These data could provide guidance for the proper and safe use of this pesticide on berseem in India.
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