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UK Risk Register Details for Chrysomyxa arctostaphyli

This record was last updated on 14/09/2022

Common Names

  • Broom rust of spruce
  • Common yellow witches' broom rust

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)
  • Cut flowers or branches

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 5
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

Regulated quarantine pest

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 5
Impact [1 - 5] 3
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 6
UK Relative Risk Rating [1 - 125] 30

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
North America
Canada Present
United States Present

Type of Pest

  • Fungus

Host or Industry at Risk

  • show / hide

Picea

Major Hosts

  • Arctostaphylos Adans.
  • Arctostaphylos uva-ursi (L.) Spreng.
  • Picea A.Dietr.
  • Picea abies (L.) H. Karst.
  • Picea engelmannii Parry Ex Engelm.
  • Picea pungens Engelm.
  • Picea sitchensis (Bong.) Carr.

Threats to Protected Cultivation

  • N/A

Forest Tree Pests and Pathogens

  • Coniferous

Further Information

PRA Availability

PRA not available

Regulation and EPPO listing

  • show / hide

Regulated quarantine pest. EPPO A1

Actions Indicated

  • show / hide

Action

Statutory action against interceptions and outbreaks

General Comments

North American rust fungus affecting spruce. The fungus also requires bearberry to complete its lifecycle. The main pathway for entry to the UK (spruce plants) is prohibited, but import of bearberry should be monitored.

Further Information

Uncertainty

  • show / hide

Key uncertainty for pest

Impact on P. sitchensis.

Climate

Current distribution

Hosts

Impact

Pathways

Regulation

Taxonomy

UK distribution

Risk Records for this Pest