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UK Risk Register Details for Saperda tridentata

Please note: there are high levels of uncertainty associated with the risk scores for this pest.

This record was last updated on 22/06/2022

Common Names

  • Elm borer

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest is introduced

Pathway Assessed for Entry to UK

  • show / hide
  • Non-squared wood

Common Pathways

  • show / hide
  • Non-squared wood
  • Bark

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 2
Impact [1 - 5] 3
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 9
UK Relative Risk Rating [1 - 125] 27

Current Mitigations

  • show / hide

Key mitigation for pest

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 2
Impact [1 - 5] 3
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 9
UK Relative Risk Rating [1 - 125] 27

Proposed Actions

Proposed Actions

Regulation

Deregulation

Management By Industry

Targeted Survey

PRA

Contingency Plan

Publicity

Research

Distribution and Pest Details

Distribution

Country / Territory Status Notes
Europe
United Kingdom Absent
North America
United States Present
Canada Present

Type of Pest

  • Insect (Coleoptera)

Host or Industry at Risk

  • show / hide

Ulmus

Major Hosts

  • Ulmus L.
  • Ulmus americana L.
  • Ulmus crassifolia Nutt.
  • Ulmus rubra Muehlenb.

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

EPPO Alert

Actions Indicated

  • show / hide

Action

Statutory action

General Comments

North American beetle with wood boring larvae, whose only recorded host is elm. Some uncertainty about the potential scale of impacts should the pest be introduced to the UK. Research into susceptibility/impact on European species elms would be useful in assessing the risk.

Further Information

Uncertainty

  • show / hide

Key uncertainty for pest

Impacts in the UK - partly due to susceptibility of elm, but also unknown influence of parasitoids / predators on the beetle in its native area

Climate

Current distribution

Hosts

Impact

Pathways

Regulation

Taxonomy

UK distribution

Risk Records for this Pest