Guidance

Find a specific tree pest or disease

Find out about a specific tree pest or disease, including its lifecycle, the type of damage it does, and what to do about it.

The pests and diseases listed below are either present in the United Kingdom or pose the greatest threat of entering. Some of the information is still being developed.

Tree pests in alphabetical order

Tree diseases in alphabetical order

Published 26 September 2018
Last updated 21 September 2020 + show all updates
  1. Information about the Two-lined chestnut borer (Agrilus bilineatus) has been added to this page.

  2. Information about the the Green spruce aphid (Elatobium abietinum) has been added to this page.

  3. Information about the Large pine weevil (Hylobius abietis) has been added to this page.

  4. Information about Elbow-patch crust disease of plane (Fomitiporia punctate) has been added to this page.

  5. Links updated for: ash dieback, plane tree wilt and budworms.

  6. Information about the Red-necked longhorn beetle (Aromia bungii) has been added to this page.

  7. First published.