UK Risk Register Details for Litylenchus crenatae

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

This record was last updated on 13/07/2020

Common Names

  • A leaf gall nematode

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] 4
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

Temporary prohibition of key pathway

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

Likelihood [1 - 5] 1
Spread [1 - 5] 4
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
Canada Present (Limited) Different subspecies from that in Japan
United States Present (Limited) Different subspecies from that in Japan
Asia
Japan Present

Type of Pest

  • Nematode (Tylenchida)

Host or Industry at Risk

  • show / hide

Fagus

Major Hosts

  • Fagus crenata Blume
  • Fagus engleriana Seemen
  • Fagus grandifolia Ehrh.
  • Fagus sylvatica ssp. orientalis L.
  • Fagus sylvatica L.

Threats to Protected Cultivation

  • Both protected crops and outdoor production

Forest Tree Pests and Pathogens

  • Broadleaved

Further Information

PRA Availability

PRA not available

Regulation and EPPO listing

  • show / hide

EPPO Alert (2019)

Actions Indicated

  • show / hide

Action

Statutory action against interceptions

General Comments

Nematode associated with beech leaf disease in North America and Japan. A risk assessment will help better determine the level of risk to the UK.

Further Information

Uncertainty

  • show / hide

Key uncertainty for pest

Lack of information about this pest’s biology.

Climate

Current distribution

Hosts

Impact

Pathways

Regulation

Taxonomy

UK distribution

Risk Records for this Pest