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Bayer ends sales of potato seed treatment Monceren

Bayer has stopped sales of the potato seed treatment Monceren (pencycuron) due to the ‘uncertain regulatory future’ of the product, Farmers Weekly reports.

Sales of the fungicide have been ceased by the German chemical giant as it also looks at the potential consequences for potato crops treated with it.

The Maximum Residue Limit (MRL) for pencycuron is currently under review by the European Food Safety Authority (EFSA), in a process that started in 2011.

In December 2018, the body published its Reasoned Opinion (RO) on pencycuron MRL and proposed to revoke the MRL on potatoes and vegetable crops, which would mean the registrations on these crops being withdrawn.

Bayer subsequently submitted new data to defend its use on potato crops, which should be reviewed by regulatory authorities before any final decision is made.

Read the full FWI report here