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  • Publications
    Forestry publication document

    Ash dieback disease – Pest Alert
    Lead Author: Forestry Commission
    Ash dieback is a disease of ash trees caused by a fungus called Chalara fraxinea. The disease causes leaf loss and crown dieback in affected trees and it may lead to tree death. This Pest Alert provides information on distribution, symptoms, how the disease spreads and what you can do to help, as well as […]
  • Publications
    Forestry publication document

    Minimising the impact of the great spruce bark beetle
    Lead Author: Forestry Commission
    The great spruce bark beetle is found in forests throughout continental Europe. It damages spruce trees by tunnelling into the bark of the living trees to lay its eggs under the bark. The developing larvae feed on the inner woody layers, which weakens, and in some cases may kill, the tree. The beetle was first […]
  • Publications

    Tree pest and disease posters

     A selection of posters that can be downloaded as PDFs and then printed at a size to suit (up to A0 size). These were mostly produced for the 2012 APF show and have been popular as posters to display in offices or places of work. Each poster shows a selection of images relating to the pest or disease and web links to where you can source more information.
  • Publications
    Forestry publication document

    Dothistroma needle blight – Field guide 2012
    Lead Author: Forest Research
    Sampling guidance, symptoms and further information.
  • Publications
    Forestry publication document

    Salt damage to trees
    Lead Author: Forestry Commission
    Pathology Advisory Note 11 Describes the symptoms of damage caused by de-icing salt. This document details signs and symptoms of the named tree pest(s) or disease(s) and provides advice on what to do if you suspect the pest or disease is present. Related pages Research and advice on tree pests and diseases Tree Health Diagnostic and Advisory Service Tree pest and […]
  • Publications
    Forestry publication document

    Dutch Elm disease – Q&A
    Lead Author: Forestry Commission
    Pathology Advisory Note 10 Answers to common questions. This document details signs and symptoms of the named tree pest(s) or disease(s) and provides advice on what to do if you suspect the pest or disease is present. Related pages Dutch elm disease resources page Tree Health Diagnostic and Advisory Service
  • Publications
    Forestry publication document

    Oak pinhole borer
    Lead Author: Forestry Commission
    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. This document details signs and symptoms of the named tree pest(s) or disease(s) and provides advice on what to do if you suspect the pest or disease is present. Related pages Research and advice […]
  • Publications
    Forestry publication document

    Managing acute oak decline

     Oak trees in Britain have long suffered from dieback and decline disorders, but a disease called acute oak decline has been causing particular concern since the first few years of the 21st century. A typical symptom of the disease is dark, sticky fluid bleeding from small cracks in the bark on the trunk of the […]
  • Publications
    Forestry publication document

    Potential impacts of drought and disease on forestry in Scotland
    Lead Author: Sarah Green
    This study identified 288 medium or high drought risk forest sites in eastern Scotland, 125 of which include Sitka spruce as a major component. Sitka spruce is intolerant of drought and is known to have previously experienced drought damage such as tree mortality and stem cracking in eastern Scotland. Cases of direct drought damage, together […]
  • Publications
    Forestry publication document

    Pine-tree lappet moth – Pest Alert
    Lead Author: Forestry Commission
    The pine-tree lappet moth has caused severe defoliation of Scots pine trees on many occasions in Eastern Europe. An initial assessment of the potential impact of the moth in Britain is that it presents a significant threat to the pine forests of northeast Scotland – and further afield if allowed to spread. This Pest Alert […]
  • Publications
    Forestry publication document

    Dutch elm disease diagnosis
    Lead Author: Forestry Commission
    Information sheet describing symptoms and how to confirm the diagnosis.
  • Publications
    Forestry publication document

    Red band needle blight of conifers in Britain
    Lead Author: Anna Brown
    Red band needle blight is an economically important disease affecting a number of coniferous trees, in particular pines. The disease has a world-wide distribution but until recently it was mainly of concern in the Southern Hemisphere. In much of the world, including Britain, it is caused by the fungus Dothistroma septosporum. Red band needle blight […]