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UK Risk Register Details for Choristoneura occidentalis biennis Freeman

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

This record was last updated on 06/08/2024

Common Names

  • two-year-cycle budworm moth

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)

Common Pathways

  • show / hide
  • Plants for planting (except seeds bulbs and tubers)
  • Cut flowers or branches

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 5
Impact [1 - 5] 3
Value at Risk [1 - 5] 2
Likelihood x Impact [1 - 25] 9
UK Relative Risk Rating [1 - 125] 18

Current Mitigations

  • show / hide

Key mitigation for pest

Regulated quarantine pest and prohibition of key pathway

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

Likelihood [1 - 5] 1
Spread [1 - 5] 5
Impact [1 - 5] 3
Value at Risk [1 - 5] 2
Likelihood x Impact [1 - 25] 3
UK Relative Risk Rating [1 - 125] 6

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
Canada Present
United States Present

Type of Pest

  • Insect (Lepidoptera)

Host or Industry at Risk

  • show / hide

Picea, Abies

Major Hosts

  • Abies lasiocarpa (Hooker) Nuttall
  • Picea engelmannii Parry Ex Engelm.
  • Picea glauca (Moench) Voss

Threats to Protected Cultivation

  • N/A

Forest Tree Pests and Pathogens

  • Coniferous

Further Information

PRA Availability

PRA not available

Regulation and EPPO listing

  • show / hide

Regulated quarantine pest (may be under synonym Choristoneura biennis)

Actions Indicated

  • show / hide

Action

Statutory action against findings.

General Comments

North American moth which is a forestry pest of some fir and spruce species. Pest appears well mitigated by regulation, including prohibition of host plants from North America.

Further Information

Uncertainty

  • show / hide

Key uncertainty for pest

Rapid addition via a workshop. Some areas of assessment may require more research

Climate

Current distribution

Hosts

Impact

Pathways

Regulation

Taxonomy

UK distribution