Residual behaviour of hexythiazox and carbendazim pesticides on and in apple fruits under field conditions [electronic resource].

Includes references.

Apple fruit trees were sprayed in the field with an acaricide8 Maccomite acaricide 10% W.P (Hexythiazox) and kemazed fungicide 50% W.P (carbendazim) at the rates of 20 and 50 g of the formulation per 100 I water, respectively. Pesticide residues were determined on and in unwashed, washed, and washed-peeled fruits at intervals of zero (one hour after spraying), 1, 3, 5, 7, 14, and 21 days after application. The obtained results indicated that the residues in the unwashed and washed apple fruits were higher (0.816 and 0.530 ppm) than the maximum residual level (MRL = 0.5 ppm) when they were detected after five days of Hexythiazox application. The washed-peeled fruits contained lower residues of 0.443 after three days of application and these residues were rapidly decreased by time The unwashed and washed apple fruits were found to contain 0.270 and 0.120 ppm after seven days of application, respectively and those levels were below the MRL.

Summary in Arabic.

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