Peer review of the pesticide risk assessment of the active substance mesosulfuron (variant evaluated mesosulfuron-methyl)

The conclusions of EFSA following the peer review of the initial risk assessments carried out by the competent authorities of the rapporteur Member State, France, and co-rapporteur Member State, Poland, for the pesticide active substance mesosulfuron (variant evaluated mesosulfuron-methyl) are reported. The context of the peer review was that required by Commission Implementing Regulation (EU) No 844/2012. The conclusions were reached on the basis of the evaluation of the representative uses of mesosulfuron-methyl as a herbicide on winter wheat and winter rye. The reliable endpoints, appropriate for use in regulatory risk assessment are presented. Missing information identified as being required by the regulatory framework is listed. Concerns are identified.