Understanding the role of the landscape matrix in species dispersal is important when targeting conservation and management strategies. This Research Note shows how least-cost modelling was used to assess invasive grey squirrel Sciurus carolinensis dispersal movements within the UK, with a focus on the county of Cumbria. Two major networks were identified separated by the […]
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 […]
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.
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 […]
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
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 […]
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 […]
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 […]
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 […]
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 […]
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