Pest and diseases | City of London

Here you will find information on how to identify pests and diseases as well as tools to help you protect and treat your trees.

Request a tree inspection

Oak wilt.

Oak Wilt

Gypsy moth on a tree.

Spongy Moth

Asian long horned beetle.

Asian Long-horned beetle

The leaves of a beech tree infected by Beech Leaf Disease

Beech Leaf Disease

An adult spotted lanternfly with its spotted brown, red and white wings spread.

Spotted lanternfly

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