UK Risk Register Details for Xylella fastidiosa (all other strains and subspecies)

Common Names

  • Alfalfa dwarf
  • Anaheim disease
  • California vine disease
  • Dwarf disease of alfalfa
  • Dwarf disease of lucerne
  • Leaf scald of oleander
  • Leaf scald of plum
  • Leaf scorch
  • Phony disease of peach
  • Pierce's disease of grapevine
  • Variegated chlorosis of citrus

Scenario and Pathways

Scenario for Risk Register

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  • Pest is introduced

Pathway Assessed for Entry to UK

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Common Pathways

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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] 4
Spread [1 - 5] 3
Impact [1 - 5] 3
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 12
UK Relative Risk Rating [1 - 125] 60

Current Mitigations

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Key mitigation for pest

EU regulated pest

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 3
Impact [1 - 5] 4
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 12
UK Relative Risk Rating [1 - 125] 60

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
North America
Canada Present (Limited)
Costa Rica Present
Mexico Present
United States Present
South America
Argentina Present
Brazil Present
Paraguay Present
Asia
Taiwan Present

Type of Pest

  • Bacterium

Host or Industry at Risk

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Vitis vinifera, Broadleaved trees

Major Hosts

  • Acer rubrum L.
  • Catharanthus roseus (L.) G.Don
  • Citrus sinensis (Linnaeus) Osbeck
  • Coffea L.
  • Gramineae Adans., Nom. Cons.
  • Medicago sativa L.
  • Morus rubra L.
  • Nerium oleander L.
  • Platanus occidentalis L.
  • Prunus L.
  • Prunus persica Batsch
  • Quercus rubra L.
  • Ulmus americana L.
  • Vaccinium L.
  • Vinca minor L.
  • Vitis L.
  • Woody plants
  • Liliaceae (family)
  • Citrus

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

  • Broadleaved

Further Information

PRA Availability

UK (2014), EFSA (2015)

EU and EPPO Listing

EC IAI , EPPO A1,Commission Implementing Decision 2015/789

Actions Indicated

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Action

Statutory action against findings.

General Comments

A bacterial disease with a wide host range and many sub-species and strains, including those that could thrive in cooler climates, showing different levels of pathogenicity. Although EU regulated, there is some concern about the risk of introduction. Should an outbreak occur, there would be a need for eradication action which would result in environmental and social impacts.