RESIDUES AND HALF-LIVES OF CERTAIN INSECTICIDES ON AND IN SOME VEGETABLES UNDER FIELD CONDITIONS
NASR, E., HEGAZY, M. (2003). RESIDUES AND HALF-LIVES OF CERTAIN INSECTICIDES ON AND IN SOME VEGETABLES UNDER FIELD CONDITIONS. EKB Journal Management System, 81(1), 83-92. doi: 10.21608/ejar.2003.276061
ESLAM N. NASR; MOHAMED E. A. HEGAZY. "RESIDUES AND HALF-LIVES OF CERTAIN INSECTICIDES ON AND IN SOME VEGETABLES UNDER FIELD CONDITIONS". EKB Journal Management System, 81, 1, 2003, 83-92. doi: 10.21608/ejar.2003.276061
NASR, E., HEGAZY, M. (2003). 'RESIDUES AND HALF-LIVES OF CERTAIN INSECTICIDES ON AND IN SOME VEGETABLES UNDER FIELD CONDITIONS', EKB Journal Management System, 81(1), pp. 83-92. doi: 10.21608/ejar.2003.276061
NASR, E., HEGAZY, M. RESIDUES AND HALF-LIVES OF CERTAIN INSECTICIDES ON AND IN SOME VEGETABLES UNDER FIELD CONDITIONS. EKB Journal Management System, 2003; 81(1): 83-92. doi: 10.21608/ejar.2003.276061

RESIDUES AND HALF-LIVES OF CERTAIN INSECTICIDES ON AND IN SOME VEGETABLES UNDER FIELD CONDITIONS

Egyptian Journal of Agricultural Research
Article 6, Volume 81, Issue 1, March 2003, Page 83-92  XML PDF (2.34 MB)
Document Type: Original Article
DOI: 10.21608/ejar.2003.276061
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Authors
ESLAM N. NASR; MOHAMED E. A. HEGAZY
Central Agricultural Pesticides Laboratory, Agricultural Research Centre, Dokki, Giza, Egypt
Abstract
The present study was carried out to determine the residual behaviour of fenitrothion, profenofos and pyrazofos pesticides on and in tomato and cucumber fruits.The initial residues were 1.92, 2.45 and 0.54 ppm for fenitrothion, profenofos and pyrazofos on and in tomato fruits, respectively. While the initial deposits of pro­fenofos and pyrazofos were 2.40 and 0.68 ppm on and in cucumber fruits. The analytical data showed a gradual decrease of tested pes­ticide residues with time.Results revealed that the residue half-lives for fenitrothion, profenofos and pyrazofos in tomato fruits were 29, 23 and 20 hours, respectively, also results revealed that the residue half-lives were 18 and 22 hours for profenofos and pyrazofos on and in cucumber fruits.
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