title: Permethrin and its two metabolite residues in seven agricultural crops.
abstract: Metabolite residues of permethrin are not reported in the literature for most agricultural crops. This paper reports residues of permethrin and its 2 metabolites (dichlorovinyl acid and metaphenoxybenzyl alcohol) in 7 different agricultural crops (Chinese cabbage, spinach, asparagus, raspberries, green peas, turnip roots, and turnip greens). Permethrin residues declined approximately 85% within 7 days after treatment in all crops. In most cases, the acid metabolite residues peaked at 3 days, and declined after that. Translocation of residues into turnip roots was very slight; the average was less than 0.05 ppm for permethrin and alcohol metabolite residues and none was detected for the acid metabolite residue. Permethrin residues in the turnip greens averaged approximately 2 ppm for the 0.112 kg ai/ha treatment, and 6 ppm for the 0.224 kg ai/ha treatment.
mesh_terms: D005506:Food Contamination / Q000032:analysis*; D005638:Fruit / Q000032:analysis; D026023:Permethrin; D010573:Pesticide Residues / Q000032:analysis* / Q000378:metabolism; D011722:Pyrethrins / Q000032:analysis*; D014675:Vegetables / Q000032:analysis
chemical_list: D010573:Pesticide Residues; D011722:Pyrethrins; D026023:Permethrin