Dissipation Behavior of Thiophanate-Methyl in Apple and Strawberry Fruits under Open Field Conditions
E. El-Hefny, D., M. Abdel-Hamid, R., S.Salma, M. (2017). Dissipation Behavior of Thiophanate-Methyl in Apple and Strawberry Fruits under Open Field Conditions. EKB Journal Management System, 38(January-March), 38-43. doi: 10.21608/asejaiqjsae.2017.1653
Dalia E. El-Hefny; Rania M. Abdel-Hamid; Maher S.Salma. "Dissipation Behavior of Thiophanate-Methyl in Apple and Strawberry Fruits under Open Field Conditions". EKB Journal Management System, 38, January-March, 2017, 38-43. doi: 10.21608/asejaiqjsae.2017.1653
E. El-Hefny, D., M. Abdel-Hamid, R., S.Salma, M. (2017). 'Dissipation Behavior of Thiophanate-Methyl in Apple and Strawberry Fruits under Open Field Conditions', EKB Journal Management System, 38(January-March), pp. 38-43. doi: 10.21608/asejaiqjsae.2017.1653
E. El-Hefny, D., M. Abdel-Hamid, R., S.Salma, M. Dissipation Behavior of Thiophanate-Methyl in Apple and Strawberry Fruits under Open Field Conditions. EKB Journal Management System, 2017; 38(January-March): 38-43. doi: 10.21608/asejaiqjsae.2017.1653

Dissipation Behavior of Thiophanate-Methyl in Apple and Strawberry Fruits under Open Field Conditions

Alexandria Science Exchange Journal
Article 5, Volume 38, January-March - Serial Number 1, March 2017, Page 38-43  XML PDF (348.31 K)
Document Type: Original Article
DOI: 10.21608/asejaiqjsae.2017.1653
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Authors
Dalia E. El-Hefny1; Rania M. Abdel-Hamid2; Maher S.Salma3
1Pesticide Laboratory, Agricultural Research Center, Dokki, Giza, Egypt.
2Pesticide Laboratory, Agricultural Research Center, Dokki, Giza, Egypt
3Pesticide Chem. and Technology, Fac.of Agric., Alexandria Universty, Egypt
Abstract
Thiophanate-methyl is an effective fungicide on several food crops. In the present study, dissipation of residue levels of thiophanate-methyl in apple and strawberry fruits under open field conditions were studied using high performance liquid chromatography with diode array detection (HPLC-DAD).The extraction and clean-up were conducted by QuEChERS method. The limit of quantitation and detection were 0.01 and 0.003 mg/kg, respectively. The results suggest that the thiophanate-methyl dissipation curves followed the first order kinetics and its half-life values were (1.01) and (1.26) days for apple and strawberry, respectively. The residues in apple and strawberry were below the codex maximum residue limit (MRL) (0.5 and 0.1 mg/kg) after 8 and 4 days of the application, respectively.
Keywords
residues; Thiophanate-methyl; Apple; strawberry
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