to Forestry Commission home page
to Forest Research home page
Forest Research home > Publications

Tree pest and disease alerts and advisory notes

Bulletins and handbills showing signs and symptoms of tree pests and diseases and advice on what to do if you suspect the pest or disease is present.

Exotic pest alert coverAsh dieback (PDF-640K)

Exotic Pest Alert

A summary of the causes, symptoms and management of ash dieback diseases caused by the Chalara fraxinea fungus.


Front cover for Asian Longhorn beetle Asian Longhorn Beetle (PDF-918K)

Exotic Pest Alert

Diagnostic details of a quarantine pest of broadleaved trees.


Dothistroma needle blight - Field guide 2012Dothistroma needle blight (PDF-2536K)

Field guide 2012

Sampling guidance, symptoms and further information.


Dutch Elm disease information noteDutch Elm Disease diagnosis (PDF-838K)

Information sheet

Symptoms and how to confirm the diagnosis.


Cover of Pathology Advisory Note 10Dutch Elm disease – Q&A (PDF-193K)

Pathology Advisory Note 10

Answers to common questions.


Exotic pest alert coverEmerald Ash Borer (PDF-4140K)

Exotic Pest Alert

Diagnostic details of a quarantine pest that causes significant damage to ash trees (Fraxinus spp.).


Advisory note coverGypsy moth (PDF-573K)

Tree Pest Advisory Note

Lymantria dispar (Lepidoptera: Lymantridae) is an important defoliator of a very wide range of trees and shrubs in mainland Europe.

March 2007.


Exotic pest alert coverHorse Chestnut Leafminer (PDF-179K)

Exotic Pest Alert

Diagnostic details of a quarantine pest that has recently made its appearance in southern England.


Advisory note coverOak pinhole borer (PDF-264K)

Tree Pest Advisory Note

Wood boring beetle Platypus cylindrus that infests and breeds in cut trees, windblown trees, standing dead and dying trees.

Revised: April 2010.


Advisory note coverOak processionary moth (PDF-412K)

Tree Pest Advisory Note

A major defoliator of oak in Europe.


Front coverPhytophthora austrocedrae on juniper (PDF-1215K)

Information sheet

Symptoms and how to collect and send samples for diagnosis.


Exotic pest alert coverPhytophthora ramorum (Sudden Oak Death) (PDF-184K)

Exotic Pest Alert

Diagnostic details of a quarantine pathogen that has been found affecting trees in England.


Pest alert coverPine-tree Lappet Moth (PDF-595K)

Pest Alert

A threat to forests in Britain.


Pathology Advisory Note coverProblems on plane trees (PDF-437K)

Pathology Advisory Note 7

Pathogens that could potentially be very damaging to Planes (Platanus spp.) in the UK.


Cover of Pathology Advisory Note 10Salt damage to trees (PDF-635K)

Pathology Advisory Note 11

Describes the symptoms of damage caused by de-icing salt.


Factsheet coverWestern Conifer Seed Bug (PDF-235K)

Plant pest fact sheet

Leptoglossus occidentalis is a Nearctic leaffooted pine bug that is a relatively serious pest of conifer seed nurseries, particularly Douglas fir.


Formats

Tree pest and disease alerts and advisory notes are free to be downloaded as electronic copy in PDF format.

PDFs can be viewed or downloaded using Adobe® Acrobat® Reader. If you do not already have this software installed on your computer, click on the Acrobat link below to obtain a free copy.

Download Adobe Acrobat
Dowload Adobe Acrobat Reader