UK Risk Register Details for Geosmithia morbida

This record was last updated on 01/07/2020

Common Names

  • Thousand Cankers Disease

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest is introduced with vector or finds vector

Pathway Assessed for Entry to UK

  • show / hide
  • Plants for planting (except seeds bulbs and tubers)
  • Non-squared wood

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] 4
Spread [1 - 5] 5
Impact [1 - 5] 4
Value at Risk [1 - 5] 1
Likelihood x Impact [1 - 25] 16
UK Relative Risk Rating [1 - 125] 16

Current Mitigations

  • show / hide

Key mitigation for pest

Regulated quarantine pest

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 5
Impact [1 - 5] 4
Value at Risk [1 - 5] 1
Likelihood x Impact [1 - 25] 8
UK Relative Risk Rating [1 - 125] 8

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
Italy See Notes Present, under eradication
North America
United States Present (Limited)

Type of Pest

  • Fungus

Host or Industry at Risk

  • show / hide

Juglans

Major Hosts

  • Juglans ailanthifolia var. ailanthifolia Carr.
  • Juglans californica Wats.
  • Juglans cinerea L.
  • Juglans hindsii Jeps. Ex R.E.Smith
  • Juglans major (Torr.) Heller
  • Juglans mandshurica Maxim.
  • Juglans microcarpa Berlandier
  • Juglans mollis Engelm.
  • Juglans nigra L.
  • Juglans regia L.
  • Juglans
  • Pterocarya Kunth
  • Pterocarya fraxinifolia (Lam./Poir.)Spach
  • Pterocarya rhoifolia Sieb. & Zucc.
  • Pterocarya stenoptera C.Dc.

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. EPPO A2

Actions Indicated

  • show / hide

Action

Statutory action on findings.

General Comments

Fungal pest (vectored by an insect) which together cause ‘thousand cankers disease’ and mortality of walnut in the US and elsewhere. Black walnut is not widespread in the UK but the main walnut species (Juglans regia) is also susceptible. A watching brief will be maintained on the current outbreak in Italy. Industry should also be aware.

Risk Records for this Pest