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UK Risk Register Details for Potato virus Y (non-European strains)

This record was last updated on 26/05/2022

Common Names

  • Potato acropetal necrosis
  • Potato leaf-drop streak
  • Potato mottle
  • Potato severe mosaic
  • Potato stipple streak
  • Tobacco vein-banding
  • Tobacco veinal necrosis
  • Veinal necrosis of pepper

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest is introduced

Pathway Assessed for Entry to UK

  • show / hide
  • Bulbs or tubers

Common Pathways

  • show / hide
  • Plants for planting (except seeds bulbs and tubers)
  • Bulbs or tubers
  • Fruits or vegetables
  • insect vectors

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 2
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 (non-European isolates) (Great Britain) and prohibition of key pathway (UK)



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 1
Spread [1 - 5] 2
Impact [1 - 5] 3
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 3
UK Relative Risk Rating [1 - 125] 15

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
Greenland Present
Mexico Present
United States Present
South America
Argentina Present
Brazil Present
Chile Present
Colombia Present
Peru Present
Venezuela Present
Australia Present
New Zealand Present
Papua New Guinea Present
Samoa Present
Algeria Present
Benin Present
Egypt Present
Ethiopia Present
Libya Present
Mauritius Present
Morocco Present
Nigeria Present
South Africa Present
Sudan Present
Tanzania Present
Tunisia Present
Zambia Present
Zimbabwe Present
Afghanistan Present
Bangladesh Present
Bhutan Present
China Present
India Present
Indonesia Present
Iran Present
Iraq Present
Israel Present
Japan Present
Jordan Present
Kazakhstan Present
Lebanon Present
Nepal Present
Pakistan Present
Philippines Present
Russia Present
Saudi Arabia Present
South Korea Present
Syria Present
Taiwan Present
Vietnam Present
Yemen Present
Central America
Costa Rica Present
Cuba Present
Dominican Republic Present
El Salvador Present
Guadeloupe Present
Jamaica Present
Puerto Rico Present

Type of Pest

  • Virus or Viroid

Host or Industry at Risk

  • show / hide

Potato, tomato, pepper

Major Hosts

  • Capsicum L.
  • Solanum lycopersicum L.
  • Nicotiana tabacum L.
  • Solanum L.
  • Solanum melongena L.
  • Solanum nigrum L.
  • Solanum tuberosum L.

Threats to Protected Cultivation

  • Both protected crops and outdoor production

Forest Tree Pests and Pathogens

  • N/A

Further Information

PRA Availability

PRA not available

Regulation and EPPO listing

  • show / hide

Regulated quarantine pest (non-European isolates) (including Yo, Yn and Yc) (Great Britain)

Actions Indicated

  • show / hide


Statutory action in Great Britain, focused particularly against findings on plants for planting

General Comments

Virus of potatoes (and to a lesser extent, other solanaceous crops) for which non-European isolates are regulated. Prohibition of key pathways helps reduce the risk of entry. Statutory action against findings on plants for planting help mitigate this risk further.

Further Information


  • show / hide

Key uncertainty for pest

Biology (distribution, impact, vector effects) of PVY isolates is very complex


Current distribution






UK distribution