Abstract
Residues of ethion were estimated in cucumber by gas liquid chromatography following three applications of the insecticide at 375 and 750 g a.i ha−1. The average initial deposits of ethion on cucumber fruits were found to be 2.40 and 4.97 mg kg−1 at single and double dosages, respectively. Residues of ethion dissipated below the maximum residue limit (MRL) of 0.5 mg kg−1 in 7 days. Half-life (T1/2) for degradation of ethion on cucumber was observed to be 2.92 days at recommended dosage. A waiting period of 7 days is suggested for safe consumption of cucumber.
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Authors thank the Professor and Head, Department of Entomology P.A.U Ludhiana for providing the necessary research facilities during the tenure of study.
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Singh, G., Singh, B., Battu, R.S. et al. Persistence of Ethion Residues on Cucumber, Cucumis sativus (Linn.) using Gas Chromatography with Nitrogen Phosphorus Detector. Bull Environ Contam Toxicol 79, 437–439 (2007). https://doi.org/10.1007/s00128-007-9251-2
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DOI: https://doi.org/10.1007/s00128-007-9251-2