Condition survey of non-woodland amenity trees


polyporus squamosus on sycamore
Polyporus squamosus growing from old pruning wound on sycamore

Tree health is always a matter of public concern. The concept behind this programme came from the ‘Forest Condition Survey’ a pan-European annual survey of forest condition which has been carried out in the UK since 1987. Whilst the Forest Condition Survey concentrates on forest trees, this non-woodland tree survey focused on 17 genera of amenity trees commonly found in urban and rural environments.

Final survey report and annuual survey reports

Research objectives

The aim of the survey was to monitor and analyse trends in tree diseases, the presence of insect pests, and other damage affecting such trees across England. It also enabled us to promote awareness of tree health to tree managers and the general public through the dissemination of annual reports and regular information notes.

Funders and partners

This programme was originally funded by the Office of the Deputy Prime Minister (ODPM) - now the Department for Communities and Local Government (DCLG) - as part of the sustainable communities' agenda.

How the survey was conducted

To help us conduct this large survey we enlisted the help of volunteer tree observers. We recruited these volunteers from all walks of life, and they included:

  • Tree Wardens
  • City Council Tree Officers
  • National Trust employees
  • Interested amateurs
  • ... and many others.

To help them complete the assessments we gave one-on-one introductions on site and held group training events supervised by Forest Research staff at a central location.

The survey was performed annually during July and August and the completed forms sent to Forest Research by the end of September.

Further information about how the survey was conducted


The survey officially ended in 2008/9.


For further information contact:

Dr. Katherine Tubby