UK Risk Register Details for Xylella fastidiosa subsp. multiplex

This record was last updated on 01/04/2020

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

  • 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] 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

  • show / hide

Key mitigation for pest

Regulated quarantine 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
Spain Present (Limited) under eradication
France Present (Limited) under eradication
United Kingdom Absent
North America
Canada Present
United States Present
South America
Brazil Present (Limited)

Type of Pest

  • Bacterium

Host or Industry at Risk

  • show / hide

Broadleaved trees

Major Hosts

  • Acacia dealbata Link
  • Acacia saligna (Labill.) H.L.Wendl.
  • Acer pseudoplatanus L.
  • Anthyllis hermanniae L.
  • Artemisia arborescens L.
  • Asparagus acutifolius L.
  • Calicotome villosa (Poir.) Link
  • Carya illinoinensis K.Koch
  • Cercis siliquastrum L.
  • Cistus L.
  • Coprosma repens A.Rich.
  • Coronilla valentina L.
  • Ficus carica L.
  • Fraxinus angustifolia ssp. angustifolia Vahl
  • Genista L.
  • Hebe Comm. Ex Juss.
  • Helichrysum italicum (Roth) G.Don/Guss.
  • Lavandula L.
  • Lonicera japonica (var. japonica) (L.) Thunb.
  • Medicago sativa L.
  • Metrosideros excelsa Soland. Ex Gaertn.
  • Morus L.
  • Myrtus communis L.
  • Olea europaea Linnaeus
  • Pelargonium graveolens L'Herit. Ex Ait.
  • Platanus L.
  • Poa L.
  • Polygala myrtifolia L.
  • Prunus L.
  • Prunus armeniaca L.
  • Prunus cerasifera Ehrh.
  • Prunus domestica ssp. domestica L.
  • Prunus dulcis var. dulcis (Mill.) D.A.Webb
  • Quercus L.
  • Quercus suber L.
  • Rosa Floribunda hybrids
  • Rosmarinus officinalis L.
  • Salvia L.
  • Cytisus scoparius (L.) Link
  • Ulmus L.
  • Urtica L.
  • Veronica L.
  • Woody plants

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

  • Broadleaved

Further Information

PRA Availability

UK (2020), EFSA (2019)

Regulation and EPPO listing

  • show / hide

Regulated quarantine pest, EPPO A2

Actions Indicated

  • show / hide

Action

Statutory action against findings.

General Comments

A bacterial disease with a wide host range detected in Corsica. Although regulated, there remains some concern about the risk of introduction. This subspecies is known to be able to thrive in cooler climates. Should an outbreak occur, there would be a need for eradication action which would result in environmental and social impacts.