UK Risk Register Details for Agrilus bilineatus (Weber) - Specified Hosts

Common Names

  • Two-lined chestnut borer

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)
  • Non-squared wood

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] 4
Spread [1 - 5] 3
Impact [1 - 5] 5
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 20
UK Relative Risk Rating [1 - 125] 100

Current Mitigations

  • show / hide

Key mitigation for pest

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

Likelihood [1 - 5] 4
Spread [1 - 5] 3
Impact [1 - 5] 5
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 20
UK Relative Risk Rating [1 - 125] 100

Proposed Actions

Proposed Actions

Regulation

Deregulation

Management By Industry

Targeted Survey

PRA

Contingency Plan

Publicity

Research

Distribution and Pest Details

Distribution

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

Type of Pest

  • Insect (Coleoptera)

Host or Industry at Risk

  • show / hide

Quercus

Major Hosts

  • Castanea dentata (Marsh.) Borkh.
  • Quercus L.

Threats to Protected Cultivation

  • N/A

Forest Tree Pests and Pathogens

  • Broadleaved

Further Information

PRA Availability

EPPO PRA in draft

EU and EPPO Listing

EPPO Alert list (2018)

Actions Indicated

  • show / hide

Action

Statutory action would be taken on findings of this pest and it is considered a priority for regulation, with measures being proposed by the EPPO Phytosanitary Measures panel. Publicity would help raise awareness of this pest.

General Comments

A highly damaging wood borer of oak and chestnut, which is commonly associated with oak mortality in the USA, and first reported in Turkey in 2002. European species of oak are known to be vulnerable to attack and the UK climate is suitable for its establishment.

Further Information

Uncertainty

  • show / hide

Key uncertainty for pest

Impacts of the pest in Europe compared to North America. The scores have erred on the side of caution for this pest, based on available evidence.

Climate - Cause

Current distribution - Cause

Hosts - Cause

Impact - Cause

Pathways - Cause

Regulation - Cause

Taxonomy - Cause

UK distribution - Cause