27 August 2020
Phytophthora ramorum is causing dieback of several nursery stock species in the UK. In Western USA the pathogen is causing the death of some native oaks and other woodland species. Legislation has been introduced as a precautionary measure to eradicate the organism where found and to prevent spread within the EU. This factsheet provides valuable information about Phytophthora ramorum in the UK, including its symptoms, sources and spead and gives practical advice about how to reduce risks and what to do if you suspect the disease is present on a site.