Our use of Cookies

This site uses only cookiesstrictly necessaryto ensure the site works correctly.

Please read about how we use cookies.

Hide this message

Strictly necessary and non-essential cookies

Accept all cookies

Accept necessary cookies only

Set Cookie Preferences

By clicking accept all cookies, you agree to our use of cookies and to our cookie policy.

We use third-party cookies on this site.

You have accepted necessary cookies only

You can change your cookie settings at any time

Hide this message

UK Risk Register Details for Tremex fuscicornis

Pest has been archived

This pest has been assessed for the Risk Register and is considered to pose a low risk to the UK. The information on this pest was correct as of 14/08/2020, but is no longer actively maintained. It will only be updated if new information is received which indicates the potential for a significant increase in risk to the UK.

This record was last updated on 14/08/2020

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest is introduced

Pathway Assessed for Entry to UK

  • show / hide
  • Plants for planting (except seeds bulbs and tubers)
  • Firewood

Common Pathways

  • show / hide
  • Plants for planting (except seeds bulbs and tubers)
  • Non-squared wood
  • Squared wood
  • Wood packaging material
  • Firewood

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 3
Impact [1 - 5] 2
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 4
UK Relative Risk Rating [1 - 125] 20

Current Mitigations

  • show / hide

Key mitigation for pest



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 3
Impact [1 - 5] 2
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 4
UK Relative Risk Rating [1 - 125] 20

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country / Territory Status Notes
Austria Present
Bulgaria Present
Croatia Present
Czech Republic Present
Denmark Present
Estonia Present
Finland Present
France Present
Germany Present
Hungary Present
Italy Present
Latvia Present
Netherlands Present
Norway Present
Poland Present
Romania Present
Slovakia Present
Slovenia Present
Sweden Present
Switzerland Present
Ukraine Present
United Kingdom Absent
South America
Argentina Present Introduced
Chile Present Introduced
Australia Present Introduced
Russia Present
Armenia Present
China Present
Iran Present
Japan Present
South Korea Present
Taiwan Present

Type of Pest

  • Insect (Hymenoptera)

Host or Industry at Risk

  • show / hide

Broadleaved trees

Major Hosts

  • Acer platanoides L.
  • Alnus Mill.
  • Alnus japonica (Thunb.) Steud.
  • Betula L.
  • Betula pubescens Ehrh.
  • Carpinus betulus L.
  • Celtis sinensis Pers.
  • Fagus L.
  • Juglans regia L.
  • Juglans sinensis (J. x sinensis) (Dc.) Dode
  • Populus L.
  • Populus alba L.
  • Populus deltoides Bartr. Ex Marsh.
  • Populus nigra L.
  • Populus tremula L.
  • Prunus L.
  • Prunus serrulata Lindl.
  • Prunus yedoensis Matsumura
  • Pterocarya stenoptera C.Dc.
  • Quercus L.
  • Robinia pseudoacacia L.
  • Salix L.
  • Salix babylonica L.
  • Salix chilensis Mol.
  • Ulmus L.
  • Ulmus davidiana Planch.
  • Ulmus japonica (Rehd.) Sarg.
  • Zelkova Spach
  • Zelkova serrata (Thunb. Ex Murr.) Makino
  • Fagus sylvatica L.
  • Acer negundo

Threats to Protected Cultivation

  • N/A

Forest Tree Pests and Pathogens

  • Broadleaved

Further Information

PRA Availability

PRA not available

Regulation and EPPO listing

  • show / hide

Not currently listed

Actions Indicated

  • show / hide


No statutory action against findings

General Comments

European and Asian wood wasp, widely distributed across those areas (but uncommon). Not known to be present in the UK. Minimal records of damage to healthy trees in its current range. Appears to be usually associated with stressed or damaged trees.

Further Information


  • show / hide

Key uncertainty for pest

Although aspects of the biology are uncertain the scores, based on current knowledge seem to represent the risk.


Current distribution






UK distribution

Risk Records for this Pest