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British potato growers’ seed treatment options cut further

Potato growers must prepare to treat their seed with a different application method this season, after the loss of Monceren for rhizoctonia control.

About 30% of powder users applied Monceren (pencycuron) in 2019, which was the only powder treatment still allowed to be hand sprinkled on seed tubers.

However, after Bayer announced that it was pulling the product from the market due to uncertainty over its regulatory future, previous users must change their application methods.

Only two options are now available to growers – either using a liquid treatment or applying a different powder with an on-planter applicator.

Independent potato specialist Andy Alexander says that for him, the preferable option is for growers to switch to a liquid treatment, which can either be applied by the seed supplier or a mobile contractor.

Full report by Farmers Weekly here