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Monitor UK tree health

Observatree trains volunteers to spot and report tree pests and diseases.

Credit: Alamy Stock Photo
Credit: WTML

The UK is at risk of losing millions of trees to pests and diseases.

Observatree is a tree health early warning system to help us spot and report outbreaks of tree pests and diseases quickly so they can be eliminated or controlled.

It relies on a network of almost 200 trained volunteers and tree health professionals who survey and check trees throughout the UK.

Visit the Observatree website to find out more, sign up for future updates or get involved.

Our Observatree collaborators:

Horse chestnut tree discoloured to yellow after a leaf miner infestation

Trees woods and wildlife

What we are doing about tree pests and diseases

We are fighting back against pests and diseases. Find out what we're doing to prevent the spread and protect the UK’s trees. 

Learn more

Key threats to look out