The fate of dichlorvos (DDVP) in field-treated four maturity stages of datesE.Y. El-Behissy, R.D. King, A.A. Bashir, M.M. Ahmed, A.M. Youssef.
The fate of dichlorvos (DDVP) on dates after application in the field has been investigated.Two methods of application with two different concentrations were used, the traditional aerialapplication of 0.15% DDVP and a new method which is called the surgical method, with the new method 0.25% DDVP was directly applied into a hole in the trunk of the tree. Residues were determined using GC-ECD after extraction of the fruits DDVP residues detected in Khalal fruits (mature full coloured stage) using aerial and surgical methods were 192.9±1.9 and 352.0 ±5.6 ng/g, respectively. For Rutab fruits (soft brown stage) DDVP residues were 24.05 ±0.87 and 50.21 ±3.6ng/g, respectively. No residues were detected in the mature Tamer fruits (hard raisin-like stage)
Journal of Behavioral Health
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