https://woodlandtrust.org.uk/trees-woods-and-wildlife/tree-pests-and-diseases/key-tree-pests-and-diseases/phytophthora-lateralis/
Phytophthora lateralis - Tree Disease - Woodland Trust
Phytophthora lateralis is a fungas-like tree disease that attacks Lawson cypress and stops trees from transporting vital nutrients.
phytophthora lateralistree diseasewoodlandtrust