AN historic row of Tenby trees could be gone from the landscape within a week because they are dangerously diseased. The chestnut trees alongside the town walls in South Parade have been found to have fungal infections which could render them unstable. Last week's strong winds led to one of the 40-foot trees blowing down across the pavement. The fallen tree revealed signs of decay that was identified as the fungal infection Kretzschmaria deusta, also known as brittle cinder, which is common in broad-leaved trees. The discovery prompted a detailed assessment of all the other trees along South Parade, which was carried out by officers from Pembrokeshire County Council, the Pembrokeshire Coast National Park Authority and an independent arborist. "It was advised that the remaining trees along South Parade should be felled, given they all exhibited at least one of three threatening conditions," said Pembrokeshire County Council cabinet member for the environment and Welsh language, Councillor Cris Tomos. "Because of this, and the likelihood of the fungus having spread from one to the next via their root systems, we reluctantly acknowledged the need to take this action, despite recognising it will alter the look along the town wall. "Safety always comes first." The county council said that felling of the trees will begin "shortly", and a five-day exemption notification under the Town Planning Listed Buildings and Conservation Areas) Act 1990 has been issued to carry out the works in the Conservation Area.