Sarah Green

Image of Sarah Green
Forest Pathologist and Programme Manager
Forest Research

Sarah obtained her PhD in plant pathology in 1995 from Lincoln University, New Zealand and subsequently worked as a plant pathologist in Canada. Since 2001 Sarah has been the senior forest pathologist leading the pathology group at Forest Research’s Northern Research Station, conducting research into a range of tree diseases and disorders including birch dieback, horse chestnut bleeding canker and drought stress. Currently she manages Forest Research’s Programme on Understanding Biotic Threats to Resilience and is the Principal Investigator on the interdisciplinary PHYTO-THREATS LWEC Phase 3 project which addresses global threats from Phytophthora species. Her main research interests are distribution, detection methods, biology and evolutionary genetics of forest pathogens, with a particular recent focus on emerging Phytophthora diseases.


Project Lead: April Armstrong
The oomycete Phytophthora ramorum has caused substantial losses of Scottish forests in recent years due to widespread mortality of European larch trees (Larix decidua). Infected trees are subject to statutory felling notices in an effort to reduce sporulation potential. Nevertheless, there are concerns about the multiple pathways by which spores might be transferred to new sites. There have been assessments of soil moved by mountain biking and walking/running resulting in evidence to support the Forestry Commission’s Keep-it-Clean campaign. This study will assess soil/plant material collected from commercial harvesting equipment (tyres, treads, mud guards etc.). PHC support will enable a wider range of diagnostic tests to be carried out, testing the robustness of the methods and examining the potential for multiple Phytophthora species to be transferred.

Impact: Add to the evidence base underpinning public and sector-facing biosecurity campaigns and improve disease management and restrict spread of the disease.