Residues of pesticides acephate and methamidophos in capsicum grown in greenhouse and open field
Article first published online: 21 DEC 2012
© 2012 Blackwell Publishing Ltd
Quality Assurance and Safety of Crops & Foods
Volume 4, Issue 5, pages e33–e37, December 2012
How to Cite
2012). Residues of pesticides acephate and methamidophos in capsicum grown in greenhouse and open field. Quality Assurance and Safety of Crops & Foods, 4, e33–e37, 4:5, 33–37., , , (
- Issue published online: 21 DEC 2012
- Article first published online: 21 DEC 2012
- Manuscript Accepted: 15 MAY 2012
- Manuscript Revised: 4 MAY 2012
- Manuscript Received: 13 FEB 2012
- pesticide residues;
Capsicum grown in low-cost polyhouses (a protective shade made up of polythene used for growing high-value agricultural products) is often infested by thrips and acephate is an insecticide, which is frequently and repeatedly used for controlling this pest.
Since a polyhouse microclimate is different from that of an open field, a study was carried out to compare the decline pattern of acephate residues in capsicum grown in polyhouse to that grown in open field.
Laboratory standardized methodologies using gas liquid chromatography was adopted to estimate residues of acephate and its metabolite, methamidophos in capsicum fruits.
Results and Conclusion
Higher initial residues (0.39 ppm) and persistence of acephate (pre-harvest interval = 16 days) and its methamidophos metabolite was detected in capsicum grown in polyhouse as compared to that grown in open field (pre-harvest interval = 12 days) in spite of higher rate of growth and consequent residue ‘dilution’ in polyhouse-grown capsicum.