Two diseased oak trees planted to mark people's fundraising efforts for the British Red Cross during World War II are to be felled.
The red oaks in Llandrindod Wells are part of a group in the shape of a cross, but a fungal infection has made them unsafe.
People in the old counties of Brecknockshire and Radnorshire raised £35,467 for the charity during the war.
Two replacement trees will be planted in Princes Avenue.
Andy Dodgson, the council's senior outdoor recreation officer, said the authority regularly surveyed its trees to assess their safety.
It was found that the two red oaks were dying and were likely to drop their branches.
Mr Dodgson added: "The surveyor recommended that we fell them and monitor the rest of the group.
"We have contacted the Red Cross to inform them of the situation and they are happy for us to proceed and are also willing to contribute towards planting replacement trees more suited to the site conditions."
A commemorative plaque at the site explains that £35,467 was raised for the services of the Red Cross Agriculture Fund in WWII.