UK Risk Register Details for Dryocosmus kuriphilus

This record was last updated on 03/08/2021

Common Names

  • oriental chestnut gall wasp

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest spreads to maximum extent

Pathway Assessed for Entry to UK

  • show / hide

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] 3
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 9
UK Relative Risk Rating [1 - 125] 27

Current Mitigations

  • show / hide

Key mitigation for pest

Regulated pest free area pest (Northern Ireland)

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 3
Impact [1 - 5] 3
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 9
UK Relative Risk Rating [1 - 125] 27

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
Netherlands Present
Germany Present
Hungary Present
Greece Present
Austria Present
Czech Republic Present
Croatia Present
France Present
Italy Present
Slovenia Present
Belgium Present
Spain Present
Switzerland See Notes Under eradication
Turkey Present
Portugal Present
United Kingdom Present
North America
United States Present
Asia
China Present
Japan Present
South Korea Present

Type of Pest

  • Insect (Hymenoptera)

Host or Industry at Risk

  • show / hide

Castanea sativa

Major Hosts

  • Castanea Mill.
  • Castanea crenata Sieb. & Zucc.
  • Castanea dentata (Marsh.) Borkh.
  • Castanea mollissima Blume
  • Castanea sativa Mill.

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

  • Broadleaved

Further Information

PRA Availability

EPPO (2003)

Regulation and EPPO listing

  • show / hide

Regulated pest free area pest (Northern Ireland), EPPO A2

Actions Indicated

  • show / hide

Action

No statutory action in Great Britain. Statutory action in line with regulations for Northern Ireland. Research into management options, e.g. biocontrol.

General Comments

Gall wasp pest of sweet chestnut recently established in the UK. Populations of the pest have been confirmed in areas including South-East England.

Risk Records for this Pest