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.
Asian Longhorn Beetle (PDF-1721K)
Exotic Pest Alert
Diagnostic details of a quarantine pest of broadleaved trees.
Dutch Elm disease diagnosis (PDF-838K)
Information sheet
Symptoms and how to confirm the diagnosis.
Emerald Ash Borer (PDF-4140K)
Exotic Pest Alert
Diagnostic details of a quarantine pest that causes significant damage to ash trees (Fraxinus spp.).
Horse Chestnut Leafminer (PDF-179K)
Exotic Pest Alert
Diagnostic details of a quarantine pest that has recently made its appearance in southern England.
Oak pinhole borer (PDF-399K)
Tree Pest Advisory Note
Wood boring beetle Platypus cylindrus that infests and breeds in cut trees, windblown trees, standing dead and dying trees.
Revised: May 2009.
Oak processionary moth (PDF-412K)
Tree Pest Advisory Note
A major defoliator of oak in Europe.
Phytophthora ramorum (Sudden Oak Death) (PDF-184K)
Exotic Pest Alert
Diagnostic details of a quarantine pathogen that has been found affecting trees in England.
Problems on plane trees (PDF-437K)
Pathology Advisory Note 7
Pathogens that could potentially be very damaging to Planes (Platanus spp.) in the UK.
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.
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