Vol. 5, Issue 6 (2017)
Dissipation pattern of flubendiamide in/on okra Abelmoschus esculentus (L) moench fruits under climatic conditions of Western Tamil Nadu
Author(s): Meenambigai C, Bhuvaneswari K, Sangavi R, Mohan Kumar K and Vinoth Kumar B
Abstract:
A supervised field trial was conducted to study the dissipation pattern of flubendiamide in/on okra, Abelmoschus esculentus (L) Moench during kharif 2017, at Naraseepuram village, Coimbatore district of Tamil Nadu, The samples were collected up to 10 days after pesticide application along with control and processed by modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) method. The final estimation of residues was carried out on Liquid Chromatography Mass Spectrometry (LCMS) with diode array detector. The mean initial deposit after two spraying of flubendiamide in/on okra fruit at recommended dose of 48 g a.i ha-1 was found to be 1.16 µg g-1. More than 80 per cent of flubendiamide residues got dissipated on 5 days after treatment. The residues persisted up to 7 days after treatment and further dissipated to Below Detectable Limit (BDL < 0.05 µg g-1) on 10 days after treatment. Dissipation of flubendiamide followed first order reaction kinetics and the calculated half life was 1.64 days. The safe waiting periods of 4.6 days was suggested based on the Codex Maximum Residual Limit (MRL) for fruiting vegetable.
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How to cite this article:
Meenambigai C, Bhuvaneswari K, Sangavi R, Mohan Kumar K, Vinoth Kumar B. Dissipation pattern of flubendiamide in/on okra Abelmoschus esculentus (L) moench fruits under climatic conditions of Western Tamil Nadu. Int J Chem Stud 2017;5(6):1804-1808.
