Farmers have sounded the alarm about the flood threat to Britain's food production as the Conservatives claim Labour is "holding back" £50million of wet weather support.
The Conservatives say "not a single penny" has been paid to farmers from a new tranche of cash as winter looms.
Rachel Hallos, vice-president of the National Farmers' Union, warned of the threat to UK agriculture.
She said: "Farmers are on the frontline of climate change and the extreme weather this brings is one of the main threats to UK food security and our ability to produce food with over 50 per cent of our most fertile farmland on floodplains.
"The country has just experienced its wettest 18 months since records began leaving thousands of acres of productive farmland under water and many farm businesses in dire need of support.
"We urgently need the details of how the Farming Recovery Fund can help those businesses recover from the devastating impacts of the flooding."
The Tories say that a £50million extension of this fund was made available before the election to help farmers whose land had been severely affected by flooding and wet weather but claim "Labour ministers are holding back payment".
The Government stated this month that more details of the expanded fund "will be made available soon".
The original fund helped 679 farmers who were paid £2.19million.
Former environment secretary Steve Barclay said: "Supporting Britain's farmers was a key priority for me as environment secretary, so it is disappointing to see Labour ministers dragging their heels on the Farming Recovery Fund. Labour need to confirm that the full £50million allocated in May will go to support farmers affected by exceptional wet weather last winter, and that this will be paid without delay.
"This is just the latest blow for our rural communities who are already being ignored by Labour."
A Defra spokesman said: "Flooding devastates farmers and rural communities across the country, the delivery of flood schemes has been too slow and farms have been left underwater."That is why we have introduced a Flood Resilience Taskforce to turbocharge the building of flood defences and bolster the nation's resilience to extreme weather."
