Insecticide residues in commercially-grown quick-maturing carrots.

Commercially-grown quick-maturing carrots which had been treated with insecticides to protect them from damage by carrot fly were analysed for residues of carbofuran (4 samples), disulfoton (17 samples) or phorate (20 samples). Intervals between treatment and harvest ranged from 10 to 35 wk. None of the carbofuran-treated carrots, and only two of the phorate-treated crops, contained greater than 0.1 mg/kg-1. Eleven of those treated with disulfoton contained greater than 0.1 mg/kg-1 but only one exceeded the Codex maximum residue limit of 0.5 mg/kg-1.