Forestry and Tree Health Resources
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Information about oak wilt, a disease of oak (Quercus) trees caused by the fungus Ceratocystis fagacearum, also known as Bretziella fagacearum
Oak lace bug (OLB) is an insect pest of oak trees (trees in the Quercus genus), and of several other species of broad-leaved trees.
The larvae, or grubs, of two-lined chestnut borer beetles are a pest of oak trees (trees in the Quercus genus) and sweet chestnut ( Castanea genus).
Overview of chronic oak dieback. Information about distribution, symptoms, diagnosis and disease management.
Two pesticides are licensed for control of the larvae, or caterpillars, of oak processionary moth (OPM). These are Bacillus thuringiensis var kurstaki (BT) and deltamethrin. Further information about them is available on the Health & Safety Executive (HSE) website. The status and availability of chemicals can change from year to...
Overview of the lifecycle Gypsy moth (Lymantria dispar) with photographs.
The two-spotted oak buprestid (TSOB) is a UK and European native, bark-boring beetle which lives on oak trees (trees in the Quercus genus), and which, in sufficient numbers, can severely weaken them.
Oak processionary moth (OPM) caterpillars, or larvae, are covered with thousands of minute, irritating hairs. These can be released as a defence mechanism, or blown off by the wind, and come into contact with people and animals. Contact can cause symptoms ranging from a mildly itching rash to allergic reactions. The caterpillars...
The first thing to consider when planning to manually remove oak processionary moth (OPM) nests and caterpillars (larvae) is personal protection from contact with the caterpillars’ irritating hairs. It is not only the caterpillars which pose a risk: OPM nests (pictured below) also contain thousands of hairs shed by the caterpillars. These continue to...
Not present in UK Notifiable – See ‘Report a sighting’ below Scientific name – Neocerambyx raddei (N. raddei) Photo © Kirill V. Makarov Deep mountain longhorn beetle, also known as Oak longhorn beetle (Neocerambyx raddei, previously known as Massicus raddei), is a major pest of Asian oak species such as Quercus mongolica...
Overview of the oak pinhole borer (Platypus cylindrus). How to identify beetle infestations and manage and protect timber.
There are a range of factors that can influence the health of an area of woodland
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