Farming bodies have warned that the industry is in a state of emergency.
The four presidents of the NFU, NFU Scotland, NFU Cymru and Ulster Farmers’ Union say there will be dire consequences for the rural economy if there is not a seismic change in the way food is sold.
And in a joint statement they have called for action from the Government, retailers, the European Union and the public.
They are seeking long-term, fairer contracts for farmers, new labelling rules to make it clear which products are British, and more marketing of British products at home and abroad.
The public are asked to keep buying British, and UK ministers have been told to stand up for British farming at an emergency meeting of the EU Council of Agriculture Ministers on September 7.