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UK Risk Register Details for Xanthomonas fuscans subsp. fuscans

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

This record was last updated on 15/03/2022

Common Names

  • Bacterial blight of bean
  • Bacterial leaf pustule of bean
  • Common blight of bean
  • Fuscous blight
  • Fuscous blight of bean

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest is introduced

Pathway Assessed for Entry to UK

  • show / hide
  • Seeds

Common Pathways

  • show / hide
  • Seeds
  • Soil/growing medium

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 3
Impact [1 - 5] 3
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 6
UK Relative Risk Rating [1 - 125] 18

Current Mitigations

  • show / hide

Key mitigation for pest

Regulated non quarantine pest



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 3
Impact [1 - 5] 3
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 6
UK Relative Risk Rating [1 - 125] 18

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country / Territory Status Notes
Hungary Present
Italy Present
Switzerland Present
United Kingdom Unknown
Belgium Present
France Present
North America
Canada Present
Mexico Present
United States Present
South America Present Country distribution probably incomplete
Brazil Present
Colombia Present
Oceania Present Country distribution probably incomplete
Australia Present
Africa Present Country distribution probably incomplete
Ethiopia Present
South Africa Present
Uganda Present
Asia Present Country distribution probably incomplete
China Present
Central America Present Country distribution probably incomplete
Dominican Republic Present
Honduras Present

Type of Pest

  • Bacterium

Host or Industry at Risk

  • show / hide


Major Hosts

  • Cassia hirsuta L.
  • Digitaria scalarum (Schweinfurth) Chiovenda
  • Dolichos lablab L.
  • Phaseolus aconitifolius Jacq.
  • Phaseolus angularis (Willd.) W.F.Wight
  • Phaseolus aureus Roxb.
  • Phaseolus lunatus L.
  • Phaseolus mungo L.
  • Phaseolus pubescens Blume
  • Phaseolus vulgaris L.

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 non quarantine pest

Actions Indicated

  • show / hide


Statutory action in line with legislation

General Comments

Bacterial pest of common beans and some other legumes, mainly transmitted by infected seeds. Present in most bean-growing areas of the world, but absent from the UK. The highest impacts have been seen in countries with warmer climates than the UK.

Further Information


  • show / hide

Key uncertainty for pest

Data referring to this species only are very scarce.


Current distribution






UK distribution