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UK Risk Register Details for Rhagoletis suavis

This record was last updated on 25/05/2022

Common Names

  • Walnut Husk Maggot

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)
  • Fruits or vegetables
  • Soil/growing medium

Risk Ratings and Current Mitigations

Unmitigated Risks

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

Current Mitigations

  • show / hide

Key mitigation for pest

Regulated quarantine pest (Great Britain)

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 3
Impact [1 - 5] 3
Value at Risk [1 - 5] 1
Likelihood x Impact [1 - 25] 6
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
Germany Present
North America Present
United States Present
Canada Present

Type of Pest

  • Insect (Diptera)

Host or Industry at Risk

  • show / hide

Juglans

Major Hosts

  • Juglans ailanthifolia var. ailanthifolia Carr.
  • Juglans cinerea L.
  • Juglans nigra L.
  • Juglans regia L.
  • Juglans

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

  • Broadleaved

Further Information

PRA Availability

PRA not available

Regulation and EPPO listing

  • show / hide

Regulated quarantine pest (Great Britain)

Actions Indicated

  • show / hide

Action

Statutory action against findings in Great Britain. No statutory action in Northern Ireland.

General Comments

North American fruit fly pest of walnut, also introduced to Germany.

Risk Records for this Pest