Signs of the fungal disease, Phytophthora ramorum - also known as Sudden Oak Death - on rhododendron at Trengwainton Garden, Cornwall. The fungus was believed to have been brought over from America and because of our now warmer climate, it is thriving in the South West, particularly Cornwall. Sudden Oak Death poses a serious threat to certain plant species.
NTPL Ref. No.
Devon & Cornwall