Forestry Tasmania has revealed it will have to log more trees earmarked for protection because of delays in verifying new reserves under the federally-funded forest peace deal.

The state-owned company yesterday told a government business hearing a further 13 coupes would have to be logged within the area nominated for immediate protection.

Planning manager John Hickey said it was because the verification process had blown out to February.

"FT (Forestry Tasmania) needs to meet contractual obligations," he said.

The Wilderness Society's Vica Bayley said the state-owned company had already had a year to move out of the nominated areas of native forest.

"This is in the order of somewhere between 1000 and 2000 hectares," he said.

"Forestry Tasmania have consistently failed over the last year to put in place the steps needed to implement the moratorium on logging and to implement the intergovernmental agreement.

"They desperately need to be brought into line so they are working in the public good.

"They don't need to log these coupes, they just need to do the work to make sure that logging happens in areas outside of the nominated reserves,"

The Society and the Greens are calling on the Government to compensate the company to leave the areas immediately.

The Resources Minister Bryan Green said the Government was working on brokering a conservation agreement.

"That will be the key to getting to the next stage of the process, which is the verification process," he said.

"I would have preferred the verification process to be finalised by the end of the year but unfortunately that wasn't the case so we've got a couple of months out to the end of February to work through supply to the industry and weigh it against conservation."