Although foot-and-mouth barely touched the North compared to Britain, the tourist industry suffered badly as a result of the disease.
There are no figures for visitor numbers to the North during the period, but Mr Alastair Good, a spokesman for the Northern Ireland Hotel Federation, said he believed there was a 20 per cent reduction in international visitors.
"The effects of foot-and-mouth are continuing to be felt even as we move into the autumn," he said.
"It had a particular effect on North American business, but the number of European travellers coming to the British Isles is also being reduced."
There is often a drop in summer bookings in the North as a result of the marching season, and this combined with foot-and-mouth led to some hotels and guest houses offering reductions.
"Things are very much returning to a normal marketplace but we are seeing a general slump in the economy," he said.
He said those in the industry would be looking to Tourism Ireland, the cross-Border tourism promotion body which is to launch a new marketing campaign in the autumn.
"We need to have a clear identity of Ireland as an international destination and one that is seen as being free of foot-and-mouth," he said.
Ms Mary-Jo McCanny of the Northern Ireland Tourist Board's Welcome Centre said its visitor numbers from April to June were up on last year.
Only one of the record number of 15 cruise ships that were booked to come to Belfast this year had cancelled and that was because of public disorder, not foot-and-mouth, she said.