Pest or disease?

Latin name:
Anoplophora chinensis

Host trees:
A broad variety of broadleaf trees

Present in the UK?

Tree Alert required?

Citrus longhorn beetle is a highly destructive pest of many broadleaf trees, including citrus, maple, beech, willow, and plane.

It is very similar to our other priority pest, Asian longhorn beetle. It could be introduced to the UK by wood packaging materials and live plants.

The beetles have a juvenile larval stage in their lifecycle. The larvae cause destruction by feeding and tunnelling under the bark of the tree. This can weaken the tree and ultimately be fatal. Signs to look out for include circular exit holes in the bark, sawdust-like waste material around the base of the tree and feeding damage to the bark, shoots and leaves. As most of the pest’s life is spent inside the tree, detection can be difficult. For more information on citrus longhorn beetle see the resources below.