Abstract
Supervised field trials were conducted at four different agro-climatic zones in India to evaluate the dissipation pattern and risk assessment of flubendiamide on tomato. Flubendiamide 480 SC was sprayed on tomato at 48 and 96gactive ingredient (a.i.) ha(-1). Samples of tomato fruits were drawn at 0, 1, 3, 5, 7, 10, 15, and 20days after treatment. Quantification of residues was done on a high-performance liquid chromatography (HPLC) device with a photo diode array detector. The limit of quantification (LOQ) of this method was found to be 0.01mgkg(-1) while limit of detection (LOD) being 0.003mgkg(-1). Residues of flubendiamide were found below the determination limit of 0.01mgkg(-1) in 20days at both the dosages in all the locations. The half-life of flubendiamide at an application rate of 48ga.i. ha(-1) varied from 0.33 to 3.28days and at 48-g a.i. ranged from 1.21 to 3.00days. On the basis of data generated under the All India Network Project on Pesticide Residues, a preharvest interval (PHI) of 1day has been recommended, and the flubendiamide 480 SC has been registered for its use on tomato by the Central Insecticide Board and Registration Committee, Ministry of Agriculture, Government of India. The maximum residue limit (MRL) of flubendiamide on tomato has been fixed by the Ministry of Health and Family Welfare, Government of India under Food Safety Standard Authority of India, as 0.07μgg(-1) after its risk assessment.
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