The Road Safety Authority (RSA) and the Irish Farmers' Association (IFA) have issued a joint appeal urging drivers to be on the lookout for tractors and other slow-moving agricultural vehicles emerging from fields over the summer months.
The appeal acts as a universal warning to motorists in all rural communities across Ireland and the UK.
The two bodies said that motorists should be patient and should not overtake on roads until it is safe to do so.
They also urged farmers to ensure they have the proper insurance and that their vehicles are roadworthy.
Noel Brett, RSA chief, said: "This is a very busy time of year for farmers. It's the start of the silage cutting season and the number of tractors and trailers out using the roads will increase dramatically.
"As a result the risk of a collision involving a road user and farm machinery has increased.
"I am asking all drivers to be on the look out for tractors, trailers and other farm machinery exiting from fields and farm yards."
Mr Brett also advised farmers not to carry a passenger on a tractor unless it is appropriately equipped.
In an effort to raise awareness of the issue, the RSA and the IFA will be broadcasting a short radio advert on national and local stations throughout the summer.
© Press Association 2011