Residues and Dissipation of Imidacloprid, Oxamyl, and Emamectin Benzoate in Greenhouse Grown Tomato Fruits and Their Influence on Lycopene Content
Zewail, M., Kandil, M., El-Shahaat, M., El-Halfway, M., El-Marei, A. (2015). Residues and Dissipation of Imidacloprid, Oxamyl, and Emamectin Benzoate in Greenhouse Grown Tomato Fruits and Their Influence on Lycopene Content. EKB Journal Management System, 36(January-March), 1-6. doi: 10.21608/asejaiqjsae.2015.1618
Mona Z. Zewail; Mahrous Kandil; Mohamed S. El-Shahaat; Mohamed H. El-Halfway; Abdel-Salam M. El-Marei. "Residues and Dissipation of Imidacloprid, Oxamyl, and Emamectin Benzoate in Greenhouse Grown Tomato Fruits and Their Influence on Lycopene Content". EKB Journal Management System, 36, January-March, 2015, 1-6. doi: 10.21608/asejaiqjsae.2015.1618
Zewail, M., Kandil, M., El-Shahaat, M., El-Halfway, M., El-Marei, A. (2015). 'Residues and Dissipation of Imidacloprid, Oxamyl, and Emamectin Benzoate in Greenhouse Grown Tomato Fruits and Their Influence on Lycopene Content', EKB Journal Management System, 36(January-March), pp. 1-6. doi: 10.21608/asejaiqjsae.2015.1618
Zewail, M., Kandil, M., El-Shahaat, M., El-Halfway, M., El-Marei, A. Residues and Dissipation of Imidacloprid, Oxamyl, and Emamectin Benzoate in Greenhouse Grown Tomato Fruits and Their Influence on Lycopene Content. EKB Journal Management System, 2015; 36(January-March): 1-6. doi: 10.21608/asejaiqjsae.2015.1618

Residues and Dissipation of Imidacloprid, Oxamyl, and Emamectin Benzoate in Greenhouse Grown Tomato Fruits and Their Influence on Lycopene Content

Alexandria Science Exchange Journal
Article 1, Volume 36, January-March - Serial Number 1, January 2015, Page 1-6  XML PDF (234.28 K)
Document Type: Original Article
DOI: 10.21608/asejaiqjsae.2015.1618
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Authors
Mona Z. Zewail* 1; Mahrous Kandil email 2; Mohamed S. El-Shahaat* 1; Mohamed H. El-Halfway* 2; Abdel-Salam M. El-Marei* 3
1Central Laboratory of Pesticide, Agriculture Research Center, Egypt
2Department of Soil and Water, Faculty of Agriculture, Alexandria University, Egypt
3Department of Pesticides Chemistry and Technology, Faculty of Agriculture, Alexandria University, Egypt
Abstract
The dissipation of oxamyl, emamectin benzoate, and imidacloprid pesticide residues in tomato fruits and their effect on its lycopene content were evaluated. The tested pesticides were applied according to the recommendation of the Egyptian Ministry of Agriculture for emamectin benzoate (Pasha EC 1.9%, 250 cm3/fedan), imidacloprid (Confidente SC 35%, 75 cm3/100L), and oxamyl (Vydate SL 24%, 3L/fedan). Pesticide residues in tomato fruits were analyzed using recently developed QuEChERS method coupled with HPLC. Recovery assays confirmed the validity and efficiency of QuEChERS with 101, 93, and 110% recovery for oxamyl, emamectin benzoate, and imidacloprid, respectively. The half-life (t1/2) values for oxamyl, emamectin benzoate, and imidacloprid in tomato fruits were 2.88, 3.12, and 3.46 days, respectively. After 12 days from application, the residues of oxamyl, emamectin benzoate, and imidacloprid in tomato fruits reached 1.0, 0.09, and 0.23 mg/kg, respectively. However, except imidacloprid, these residue values of oxamyl and emamectin benzoate were still above the maximal residue limit (MRL). In addition, the cumulative effects of imidacloprid and emamectin benzoate have significant inhibitory effects on the lycopene content compared to untreated tomato fruits.
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