UK Risk Register Details for 'Candidatus Liberibacter americanus'

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

This record was last updated on 19/05/2020

Common Names

  • dieback (India)
  • greening (South Africa)
  • Huang long bing (yellow dragon disease) (Chinese)
  • leaf mottling (Philippines)
  • vein phloem degeneration (Indonesia)

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

Current Mitigations

  • show / hide

Key mitigation for pest

Regulated quarantine pest. Prohibition of key pathway.

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

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

Proposed Actions

Proposed Actions

Regulation

Deregulation

Management By Industry

Targeted Survey

PRA

Contingency Plan

Publicity

Research

Distribution and Pest Details

Distribution

Country Status Notes
Europe
United Kingdom Absent
South America
Brazil Present

Type of Pest

  • Bacterium

Host or Industry at Risk

  • show / hide

Citrus

Major Hosts

  • Aegle Corr. Ex Roxb.
  • Afraegle (Swingle) Engler
  • Calodendrum Thunb.
  • Choisya H.B.K.
  • Citrus sinensis (Linnaeus) Osbeck
  • Clausena Burm.F.
  • Fortunella Swing.
  • Murraya J.G.Koenig Ex L. Corr. Murr.
  • Murraya paniculata (Linnaeus) Jack
  • Pamburus Swingle
  • Poncirus Rafin.
  • Severinia Tenore
  • Triphasia Lour.
  • Vepris Comm. Ex Juss.
  • Citrus

Threats to Protected Cultivation

  • N/A

Forest Tree Pests and Pathogens

  • N/A

Further Information

PRA Availability

PRA not available

Regulation and EPPO listing

  • show / hide

Regulated quarantine pest

Actions Indicated

  • show / hide

Action

Statutory action in line with legislation

General Comments

Bacterial disease of plants in the citrus family, known only from Brazil. More likely to be a concern for countries which grow citrus commercially.

Further Information

Uncertainty

  • show / hide

Key uncertainty for pest

Rapid addition in a workshop setting.

Climate

Current distribution

Hosts

Impact

Pathways

Regulation

Taxonomy

UK distribution