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ISSN 2063-5346
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DELTAMETHRIN PESTICIDE RESIDUES DETERMINATION BY GC-MS/MS EMPLOYING QuEChERS METHOD FOR EXTRACTION ON SOME CONSUMABLE PRODUCE OF PIGEONPEA CROP

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1Sonika Kochhar,*2Rashmi Urkude, 3Varsha Dhurvey
» doi: 10.31838/ecb/2023.12.4.078

Abstract

Deltamethrin, a synthetic pyrethroid insecticide effectively limits insect pests of high-value crop pigeonpea. The development of deltamethrin has involved an iterative process of structural modification of pyrethrins which is extracted from Chrysanthemum flowers. Since deltamethrin is widely used in Vidarbha against pod borer on pigeonpea ,there is always a risk of these residues occurring in green pods of pigeonpea which may affect human health and also there is a risk of these pesticides being ingested by livestock through residues on pod covers used as fodder for animals .To ensure low level of residues on green pods the present study was conducted on the samples of green pods from the field trials conducted for studying the bioefficacy of deltamethrin 2.8 EC against pod borer on pigeonpea. QuEChERS method was used for extraction followed by analysis using GC-MS/MS. Residues in green pod samples collected from Mahurzari farm sprayed with 0.0014, 0.0028 and 0.0042 per cent deltamethrin were found to be 0.025,0.037 and 0.055 mg/kg respectively, which were below the prescribed limit.

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