Pesticide residues in foodstuffs in Great Britain. VII. —Demeton‐methyl and dimethoate residues in Brussels sprouts, lettuce, green peas and French beans, potatoes and strawberries

Samples of Brussels sprouts, lettuce, green peas and French beans, potatoes and strawberries from commercial crops that had been treated with demeton‐methyl, oxydemeton‐methyl, dimethoate and/or formothion were analysed at the time of harvest. 168 of 191 samples (88%) contained residues of these pesticides not exceeding 0.2 ppm; the residues in the remainder did not exceed 0.8 ppm.