Residues of some pesticides on and in okra plants and soil [electronic resource].

Inculdes reference

Okra plants, Baladi variety, were subjected to one spray with pirimiphos-methyl, malathion and methomyl insecticides using the recommended rates during 2005 growing season. The residues of the three insecticides were determined on and in green fruits, green leaves of okra plants and soil after spraying. The effect of washing with tap water and blenching of green fruits in boiled water on insecticide residues were also estimated. Summarized results show the following: The amount of initial deposits of the three tested insecticides in and on green leaves were 52.32, 38.50 and 32.50 mg/kg for pirimiphos -methyl, malathion and methomyl, respectively. These amounts decreased gradually till reached 2.61, 0.81 and 0.46 mg/kg after 14 days of spraying representing 95.01,97.86 and 98.58% loss of the initial deposits, respectively.

Summary in Arabic.

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