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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.  Asian Longhorn Beetle
Exotic Pest Alert Diagnostic details of a quarantine pest of broadleaved trees.  Download (PDF-1721K)
 Emerald Ash Borer
Exotic Pest Alert Diagnostic details of a quarantine pest that causes significant damage to ash trees (Fraxinus spp.). Download (PDF-4140K)
 Horse Chestnut Leafminer
Exotic Pest Alert Diagnostic details of a quarantine pest that has recently made its appearance in southern England. Download (PDF-179K)
 Oak pinhole borer
Tree Pest Advisory Note Wood boring beetle Platypus cylindrus that infests and breeds in cut trees, windblown trees, standing dead and dying trees. Download (PDF-286K)
 Oak processionary moth
Tree Pest Advisory Note A major defoliator of oak in Europe. Download (PDF-412K)
 Phytophthora ramorum (Sudden Oak Death)
Exotic Pest Alert Diagnostic details of a quarantine pathogen that has been found affecting trees in England. Download (PDF-184K)
 Problems on plane trees
Pathology Advisory Note 7 Pathogens that could potentially be very damaging to Planes (Platanus spp.) in the UK. Download (PDF-400K)
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