EU trade commissioner Peter Mandelson yesterday accused the Irish Farmers' Association of lying to voters ahead of the upcoming referendum on the Lisbon Treaty.
Mr Mandelson insisted the EU reform treaty should not be linked to any world trade deal.
"The Irish Farmers Association are getting their facts wrong. The first step is for people to understand what's really at stake in these negotiations and why the Irish beef industry can and will be secured," he said.
"Rejecting the treaty would not be in Ireland's interests. It wouldn't be in Europe's interests."
The IFA has threatened to oppose the new treaty, if Mr Mandelson manages to carve a World Trade Organisation (WTO) agreement before the vote on June 12.