UK Risk Register Details for Ennomos subsignaria

Common Names

  • Elm spanworm
  • Ennomid, white
  • Linden moth, snow-white

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest is introduced

Pathway Assessed for Entry to UK

  • show / hide
  • Firewood
  • Plants for planting (with soil)

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] 4
Impact [1 - 5] 3
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 9
UK Relative Risk Rating [1 - 125] 45

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] 4
Impact [1 - 5] 3
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 9
UK Relative Risk Rating [1 - 125] 45

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
Canada Present
United States Present

Type of Pest

  • Insect (Lepidoptera)

Host or Industry at Risk

  • show / hide

Broadleaved trees

Major Hosts

  • Acer L.
  • Aesculus L.
  • Ailanthus Desf.
  • Betula L.
  • Carpinus caroliniana Walt.
  • Carya Nutt.
  • Castanea dentata (Marsh.) Borkh.
  • Catalpa Scop.
  • Fagus L.
  • Fraxinus L.
  • Juglans
  • Kalmia L.
  • Liquidambar L.
  • Malus Mill.
  • Morus L.
  • Nyssa L.
  • Ostrya virginiana (Mill.) K.Koch
  • Populus L.
  • Prunus serotina Ehrh.
  • Quercus L.
  • Rhododendron L.
  • Salix L.
  • Sassafras Nees & Eberm./Trew.
  • Sorbus L.
  • Tilia americana L.
  • Ulmus L.

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

  • Broadleaved

Further Information

PRA Availability

PRA not available

EU and EPPO Listing

Not currently listed

Actions Indicated

  • show / hide

Action

Statutory action against findings

General Comments

Polyphagous moth pest which defoliates deciduous trees and, with repeated infestation, can cause tree death. Present in North America and current import requirements do not fully mitigate the risk of introduction. A PRA will help to assess the level of risk more fully.

Risk Records for this Pest