UK Risk Register Details for Candidatus Liberibacter solanacearum

This record was last updated on 30/07/2021

Common Names

  • zebra chip

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)
  • Fruits or vegetables

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] 3
Spread [1 - 5] 3
Impact [1 - 5] 5
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 15
UK Relative Risk Rating [1 - 125] 75

Current Mitigations

  • show / hide

Key mitigation for pest

Regulated non quarantine pest



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 3
Impact [1 - 5] 5
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 15
UK Relative Risk Rating [1 - 125] 75

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country / Territory Status Notes
United Kingdom Absent
Serbia Present (Limited) Present, restricted distribution
Spain Present (Limited) present In carrots and celery in some parts of Spain, absent, eradicated on potato.
Norway Present In carrots
Sweden Present In carrots
France Present In carrots
Finland Present In carrots
Italy Present In carrots
North America
United States Present
Mexico Present
South America
Ecuador Present
New Zealand Present
Morocco Present In carrots
Central America
El Salvador Present
Guatemala Present
Honduras Present
Nicaragua Present

Type of Pest

  • Bacterium

Host or Industry at Risk

  • show / hide

Solanum tuberosum

Major Hosts

  • Apium graveolens L.
  • Capsicum annuum L.
  • Capsicum frutescens L.
  • Daucus carota L.
  • Foeniculum vulgare Mill.
  • Solanum lycopersicum L.
  • Pastinaca sativa L.
  • Petroselinum crispum (Mill.) Nyman Ex A. W. Hill
  • Solanum dulcamara L.
  • Solanum tuberosum L.

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

Further Information

PRA Availability

EPPO (2010), UK (2014)

Regulation and EPPO listing

  • show / hide

Regulated non quarantine pest, EPPO A1

Actions Indicated

  • show / hide


Statutory action against findings and keep PRA up to date in light of developments. Priority for surveying carrot crops for the presence of the disease, and for the development of in field diagnostics.

General Comments

Damaging bacterial pest of potato which can also affect other solanaceous crops. Carrots thought to be affected by a different strain. Keep legislation under review to prevent introduction or spread of the bacterium and its vectors.