Pests & Diseases

We have compiled a list of recent issues - a helpful list of advice from guidance leaflets and links to other sites on what to look for, avoid or report.  (Files are downloadable .PDFs - Help with files and downloads can be found here.)

Jump down to:  Oak Processionary Moth

Ash Dieback Fungal Disease

Ash dieback fungal disease, which has infected some 90% of the species in Denmark, is threatening to devastate Britain's 80m ash population. Symptoms of the disease can be visible on leaves, shoots and branches of affected trees.  Click on the pictures below to download the leaflets. 

Download the Interim Chalara (Ash Die Back) Control Plan, kindly provided by The Department of Environment, Food and Rural Affairs.

Ash Dieback disease leaflet 1 download   Ash Dieback disease leaflet 2 download

The Forestry Commission have created an app for identifying diseased trees  - you can download the free app to your smartphone or tablet from the links below.

Tree Alert app from Google PlayTree Alert app Apple store

For the BBC Ash dieback: Spotter's guide and maps click here.

Oak Processionary Moth

The Oak Processionary Moth caterpillarsThe Oak Processionary Moth (Thaumetopoea processionea), a native of mainland Europe, is breeding on oak trees in Brent, Ealing, Hounslow,Richmond upon Thames and Hammersmith & Fulham Boroughs. Its caterpillars feed on oak leaves and produce silken nests on the trunks and branches of affected trees.

Download the advice leaflet poster here.
Download the latest advice from The Forestry Commission:
Controlling the Oak Processionary Moth in London

Files are downloadable .PDFs - Help with files and downloads can be found here.


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