Reasoned opinion on the modification of the existing MRL for pencycuron in potatoes

In accordance with Article 6 of Regulation (EC) No 396/2005, the United Kingdom, hereafter referred to as the evaluating Member State (EMS), received an application from Bayer CropScience Ltd to modify the existing MRL for the active substance pencycuron in potatoes. In order to accommodate for the intended use of pencycuron the United Kingdom proposed to raise the existing MRL in potatoes from 0.1 mg/kg to 0.2 mg/kg. The United Kingdom drafted an evaluation report in accordance with Article 8 of Regulation (EC) No 396/2005, which was submitted to the European Commission and forwarded to EFSA. EFSA is of the opinion that the metabolic pathway of pencycuron in root and tuber vegetables for the proposed use pattern of pencycuron is not adequately elucidated, hence the available information is not adequate to derive a MRL proposal for the intended use of pencycuron on potatoes sprayed in-furrow at planting and to perform a reliable consumer risk assessment.