The IFA is to seek an urgent meeting with Office of Public Works junior minister Brian Hayes in a bid to relieve flooding that is affecting 100,000 acres of land along the River Shannon.
Visiting some of the farms worst affected at Lusmagh, Co Offaly, IFA Flood Project Team leader Michael Silke said the problem was the worst in living memory.
He said urgent action was needed by Waterways Ireland to deal with maintenance and drainage that could alleviate the flooding.
Farmers in the region are housing thousands of cattle that should be out on the land but have been moved in the last few days because of flooding.
The IFA has also accused meat factories of using the bad weather to reduce current prices.