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Blog

Host of the Month - Sweet Chestnut

Matt Parratt, Observatree Scientific Coordinator, looks at sweet chestnut, Oriental chestnut gall wasp and sweet chestnut blight.

Matt Parratt  •  07 Nov 2023

Blog

Canker Stain of Plane

A summary of the damage caused by Canker Stain of Plane.

Alex Lewis  •  01 May 2024

Blog

Host of the month - Sweet chestnut

Matt Parratt takes a look at Sweet chestnuts, and explains their issues with Oriental chestnut gall wasp, and Sweet chestnut blight.

Matt Parratt  •  16 Oct 2025

Blog

On the Road with Observatree: Science Day Highlights

Ever wondered what happens after you submit a TreeAlert report? This Autumn at our Science Day events, our volunteers got an exclusive peek behind the scenes - and the discoveries were fascinating! Vicky Bolton, the Citizen Science Officer for Observatree, summarises the highlights for us.  

Vicky Bolton  •  13 Nov 2025

Blog

Out with the old and in with the new: Welcome to Observatree

In 2017, Observatree produced more educational resources, ran successful media campaigns, trained stakeholders and volunteers across the county, attended events, held a volunteer celebration event and hosted a conference.

Peter Crow  •  07 Jan 2018

FAQ

Observatree FAQs

Frequently asked questions about Observatree and tree health.

Blog

Host of the month - Sweet chestnut

Matt Parratt discusses Sweet chestnut (Castanea sativa) and its associated pest: the Oriental chestnut gall wasp, and its associated disease: Sweet chestnut blight.

Matt Parratt  •  17 Oct 2024

Blog

Host of the month - Beech

Matt Parratt looks at Beech (Fagus sylvatica) and its associated Beech leaf disease.

Matt Parratt  •  20 Jun 2024

Blog

Host of the month - Cedar

This month Matt Parratt takes a look at Cedars and Sirococcus blight.

Matt Parratt  •  17 Apr 2025