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Pine processionary moth training video

Video • 00:09:29
Video

Seasonal Survey Highlights Autumn

A short introduction to the hosts of the month for autumn.

00:18:14
Resource Library

Pest & Disease Resources
Video

Tree Alert Demo Webinar

Learn about how to use the new Tree Alert system.

00:38:29
Blog

Observatree: Where it all began

Jane Barbrook, Plant Health & Seeds Inspectorate (Animal & Plant Health Agency), looks back at the start of the Observatree project and considers its ongoing success.

Jane Barbrook • 05 Oct 2023
Video

Host of the Month Plane - September 2024

Host of the Month Plane - September 2024

00:50:46
Pests and diseases

Sirococcus tsugae

Found in several UK locations on cedar, Sirococcus tsugae causes characteristic pink dead needles and can eventually kill shoots and branches.
Pests and diseases

Beech Leaf Disease

Beech leaf disease is a newly described disease causing discolouration of beech leaves.
About us

What does Observatree do?

Our aim is to protect the UK’s trees, woods and forests from new and introduced pests and diseases.
Blog

Sentinels – A vital tree network

For National Tree Week, we asked our volunteers to send in some examples of their favourite sentinel trees - Vicky Bolton, the Citizen Science Officer for Observatree, highlights some of their top picks.

Vicky Bolton • 04 Dec 2025