* ‘ pollinating role vital for EU farm sector

* EU Commission says was right to take precautionary action

* Environmental group challenges UK over use of

By Barbara Lewis

BRUSSELS, Aug 26 (Reuters) – Widely-used pesticides made by Bayer CropScience and Syngenta pose a risk to bees, the European Union’s food safety watchdog said on Wednesday, reinforcing previous research that led to EU restrictions.

The European Food Safety Authority (EFSA), which guides EU policymakers, said leaf spray containing three pesticides could harm bees, whose pollinating role is estimated to be worth billions of euros for the bloc’s farm sector.

Earlier research had found that the three pesticides — clothianidin, imidacloprid and thiamethoxam — posed a risk when used as seed treatments or granules, prompting the European Commission to limit their use from Dec. 1, 2013.

“They (the EFSA conclusions) confirm that the Commission was correct to take precautionary measures in 2013,” the Brussels-based EU executive said in an emailed statement.

Syngenta and Bayer CropScience made no public comment on Wednesday’s announcement, although the companies have previously criticised the basis of the EU restrictions and challenged them in court.

The European Crop Protection Association, which represents the European pesticide industry, also had no immediate comment.

The use of the three substances in seed or soil treatments is prohibited in the European Union for crops attractive to bees and for cereals other than winter cereals except in greenhouses.

Their use in foliar treatments — feeding plants by applying liquid fertiliser directly to their leaves — is banned for crops attractive to bees and on cereals, except in greenhouses or after flowering.

Environment campaigners said the pesticides should never have been allowed in the first place.

“Questions need to be asked about how these products were ever approved for use,” said Paul de Zylva, a campaigner at the environmental group Friends of the Earth.

The group this month launched a legal challenge to a British decision to allow some farmers to use neonicotinoids after London won an exemption from the EU restrictions.

As part of a two-year review process, the EFSA has asked national authorities, research institutions and other interested parties to submit new relevant information by Sept. 30.

Depending on an evaluation of the information, the Commission says it could change the rules.

Proponents of neonicotinoids say they have a major economic benefit because they destroy pests and help to ensure abundant food for a growing world population.

But those demanding greater protection for bees stress the insects’ economic value. Some 75 percent of crops traded on the global market depend on pollinators and the value of in Europe is estimated at 14.6 billion euros. (Editing by Gareth Jones)


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