UK Risk Register Details for Agrilus planipennis

This record was last updated on 23/03/2021

Common Names

  • Emerald Ash Borer

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest is introduced

Pathway Assessed for Entry to UK

  • show / hide
  • Firewood

Common Pathways

  • show / hide
This section is currently being developed as part of the next phase of the Risk Register.

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 5
Spread [1 - 5] 4
Impact [1 - 5] 5
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 25
UK Relative Risk Rating [1 - 125] 125

Current Mitigations

  • show / hide

Key mitigation for pest

Regulated quarantine pest



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 4
Impact [1 - 5] 5
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 15
UK Relative Risk Rating [1 - 125] 75

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country Status Notes
Ukraine Present
United Kingdom Absent
Russia Present
North America
Canada Present (Limited)
United States Present (Limited)
Asia Present
China Present
Japan Present
South Korea Present
North Korea Present
Mongolia Present
Taiwan Present

Type of Pest

  • Insect (Coleoptera)

Host or Industry at Risk

  • show / hide


Major Hosts

  • Fraxinus L.
  • Fraxinus americana L.
  • Fraxinus angustifolia ssp. oxycarpa Vahl (Bi. Wi.) Franco
  • Fraxinus excelsior L.
  • Fraxinus lanuginosa Koidz.
  • Fraxinus mandshurica Rupr.
  • Fraxinus nigra Marsh.
  • Fraxinus ornus L.
  • Fraxinus quadrangulata Michx.
  • Fraxinus rhynchophylla Hance
  • Fraxinus uhdei (Wenzig) Lingelsh.
  • Fraxinus velutina Torr.
  • Juglans ailanthifolia var. ailanthifolia Carr.
  • Juglans mandshurica Maxim.
  • Pterocarya rhoifolia Sieb. & Zucc.
  • Ulmus davidiana Planch.
  • Fraxinus chinensis Roxb.
  • Fraxinus pennsylvanica

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

  • Broadleaved

Further Information

PRA Availability

Forest Research (2004); EPPO (2004, 2013)

Regulation and EPPO listing

  • show / hide

Regulated quarantine pest. EPPO A2

Actions Indicated

  • show / hide


Statutory action against findings. Improved preparedness, including awareness raising and research.

General Comments

Damaging beetle pest of ash, native to parts of Asia and spreading in European Russia and North America. Europe wide surveillance is needed, especially in countries in the eastern fringe of Europe where this pest is spreading. Regulated in many countries, which will help mitigate risks associated with movements in trade. Close attention is being paid to outbreak discoveries reported in 2021 close to the borders of the EU.

Risk Records for this Pest