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UK Risk Register Details for Phacidiopycnis washingtonensis

Please note: there are high levels of uncertainty associated with the risk scores for this pest.

Pest has been archived

This pest has been assessed for the Risk Register and is considered to pose a low risk to the UK. The information on this pest was correct as of 24/06/2020, but is no longer actively maintained. It will only be updated if new information is received which indicates the potential for a significant increase in risk to the UK.

This record was last updated on 24/06/2020

Common Names

  • post-harvest fruit rot of apple
  • speck rot of apple

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest spreads to maximum extent

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
  • Wind Dispersal
  • leaves

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 4
Spread [1 - 5] 4
Impact [1 - 5] 2
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 8
UK Relative Risk Rating [1 - 125] 24

Current Mitigations

  • show / hide

Key mitigation for pest



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 4
Spread [1 - 5] 4
Impact [1 - 5] 2
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 8
UK Relative Risk Rating [1 - 125] 24

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country / Territory Status Notes
Denmark Present
Germany Present
Italy Present
Norway Present
United Kingdom Present (Unknown Distribution)
North America
United States Present
South America
Chile Present

Type of Pest

  • Fungus

Host or Industry at Risk

  • show / hide

Malus sylvestris (crab apple)

Major Hosts

  • Abies Miller
  • Arbutus menziesii Pursh
  • Athrotaxis selaginoides D.Don
  • Cedrus atlantica (Endl.) Manetti Ex Carr.
  • Cedrus deodara (D.Don) G.Don Ex Loud.
  • Cephalotaxus Sieb. & Zucc. Ex Endl.
  • Malus sylvestris subsp. sylvestris (Linnaeus) Miller
  • Mespilus germanica L.
  • Picea abies (L.) H. Karst.
  • Pinus L.
  • Pyrus communis L.
  • Tsuga heterophylla (Rafin.) Sarg.

Threats to Protected Cultivation

  • N/A

Forest Tree Pests and Pathogens

  • Broadleaved & Coniferous

Further Information

PRA Availability

PRA not available

Regulation and EPPO listing

  • show / hide

Not currently listed

Actions Indicated

  • show / hide


No statutory action against findings

General Comments

Fungal pathogen of certain conifers, crab apple and apple. Present in some European countries, including the UK, and apple growers may wish to monitor for its presence and take management action to prevent decay in stored fruit.

Further Information


  • show / hide

Key uncertainty for pest

Pathogenicity on conifer and commercial fruit trees


Current distribution






UK distribution