Asian Longhorn Beetle ALB
Asian Longhorn Beetle ALB
Treatment and Management of Asian Longhorn Beetle Infestation

Asian Longhorn Beetles in the UK - Treatment Identification and Management

The Asian longhorn beetle, Anoplophora glabripennis, is a highly destructive pest, native to China and is finding it's way into the UK on a range of imported wood. The beetles scrape away tree bark and lay their eggs underneath. The larvae hatch and then feed by boring into the trunk of the tree. This is the destructive part of its life cycle. Severe infestation will eventually lead to a greatly weakened tree, death and possible personal injury due to falling.

ALB has caused devastation in the USA. The video below gives an overview on the Asian Longhorn Beetle.

Many species of broad leaved trees are at risk such species as acer, willow, hazel, beech, poplar, ash and elm. The larvae bores deep into the trunk of the tree, making treatment with insecticides ineffective.

Asian Longhorn Beetle - Symptoms

  • Exit holes in the tree trunk about 10mm in diameter
  • The exit holes are generally found in the main trunk and branches.
  • Sawdust-like droppings at the base of infested trees
  • Scraped bark and sap bleeding where eggs have been laid
  • Bark-feeding damage on smaller branches and shoots.

Adult beetles are between 20 - 40 mm long with a shiny black body and variable spotted white markings. They have very long antennae which are black with white or light blue stripes. They are almost identical in appearance to citrus longhorn beetle, another highly destructive invasive species for South East Asia.

PDFDownload the Asian Longhorn Beetle Identification Guide

How We Can Help

Our specialist Tree Consultant will positively identify the presence of Asian Longhorn Beetles and make recommendations for works to eradicate the pest which observe all necessary bio security protocols. Treatment and management generally involves cutting down infected trees, chipping and burning on site. Any beetles should be placed in sealed containers and Defra should be notified.

Give us a call for some advice and help.

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