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UK Risk Register Details for Ceropsora weirii

This record was last updated on 18/06/2023

Common Names

  • Rust, spruce needle

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)

Risk Ratings and Current Mitigations

Unmitigated Risks

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

Current Mitigations

  • show / hide

Key mitigation for pest

Pathway prohibition on Picea plants



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 1
Spread [1 - 5] 2
Impact [1 - 5] 2
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 2
UK Relative Risk Rating [1 - 125] 10

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country / Territory Status Notes
United Kingdom Absent
North America
Canada Present
United States Present
Kazakhstan Present
China Present

Type of Pest

  • Fungus

Host or Industry at Risk

  • show / hide


Major Hosts

  • Picea A.Dietr.
  • Picea engelmannii Parry Ex Engelm.
  • Picea glauca (Moench) Voss
  • Picea mariana (Mill.) Britt., Sterns & Poggenb.
  • Picea omorika (Panc.) Purk.
  • Picea pungens Engelm.
  • Picea rubens Sarg.
  • Picea schrenkiana Fisch. & Mey.
  • 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

Not currently listed

Actions Indicated

  • show / hide


Statutory action against findings, but not specifically listed in legislation due to existing pathway prohibitions.

General Comments

Rust fungus affecting spruce trees in North America, which causes foliage symptoms and premature needle drop. Existing prohibitions on the import of spruce trees and branches from North America mitigate against entry.

Further Information


  • show / hide

Key uncertainty for pest

The exact climatic conditions required (especially moisture) which might lead to higher impacts


Current distribution






UK distribution

Risk Records for this Pest