UK Risk Register Details for Acleris semipurpurana

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

This record was last updated on 15/06/2020

Common Names

  • Oak Leafshredder Moth
  • Oak Leaftier 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
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] 3
Spread [1 - 5] 3
Impact [1 - 5] 5
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 15
UK Relative Risk Rating [1 - 125] 75

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

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
North America
United States Present

Type of Pest

  • Insect (Lepidoptera)

Host or Industry at Risk

  • show / hide

Quercus

Major Hosts

  • Quercus L.
  • Quercus alba L.
  • Quercus coccinea Muenchh.
  • Quercus palustris Muenchh./Du Roi
  • Quercus rubra L.
  • Quercus velutina Lam.
  • Rosa L.

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

Regulated quarantine pest (as Acleris spp. (non-European))

Actions Indicated

  • show / hide

Action

Statutory action against findings.

General Comments

North American moth pest, mainly affecting species of oak. In outbreak years, high levels of defoliation and some tree death has been reported. Effectively mitigated by current regulations prohibiting imports of the hosts from the country of origin.

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

Risk Records for this Pest