2018Journal of Pharmacognosy and PhytochemistryOpen access

Persistence of quinalphos and ethion in/on brinjal

Saindane Ys, CS Patil, BV Deore

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Abstract

Studies on the dissipation pattern of quinalphos and ethion in/on brinjal fruits and soil were undertaken by following two foliar applications at recommended and double the recommended doses quinalphos and ethion (250 and 500 g a.i./ha) at fruiting stage. Residues of quinalphos and ethion dissipated with half-life of 2.05, 2.18 and 2.12, 3.21 days, at both the doses respectively. The residues reached below quantification limit (BDL) on 7th day in quinalphos and ethion at the recommended dose. Considering this, Pre-harvest interval (PHI) of seven days can be suggested for quinalphos and ethion with reduced risk of insecticide residues in brinjal.

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What this paper is about

Studies on the dissipation pattern of quinalphos and ethion in/on brinjal fruits and soil were undertaken by following two foliar applications at recommended and double the recommended doses quinalphos and ethion (250 and 500 g a.i./ha) at fruiting stage. Residues of quinalphos and ethion dissipated with half-life of 2.05, 2.18 and 2.12, 3.21 days, at both the doses respectively. The residues reached below quantification limit (BDL) on 7th day in quinalphos and ethion at the recommended dose. Considering this, Pre-harvest interval (PHI) of seven days can be suggested for quinalphos and ethion with reduced risk of insecticide residues in brinjal.

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Available abstract

Studies on the dissipation pattern of quinalphos and ethion in/on brinjal fruits and soil were undertaken by following two foliar applications at recommended and double the recommended doses quinalphos and ethion (250 and 500 g a.i./ha) at fruiting stage. Residues of quinalphos and ethion dissipated with half-life of 2.05, 2.18 and 2.12, 3.21 days, at both the doses respectively. The residues reached below quantification limit (BDL) on 7th day in quinalphos and ethion at the recommended dose. Considering this, Pre-harvest interval (PHI) of seven days can be suggested for quinalphos and ethion with reduced risk of insecticide residues in brinjal.

Key concepts: Ethion, Quinalphos, Persistence (discontinuity), Toxicology, Pesticide, Agronomy, Biology, Diazinon

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