Department for Environment, Food & Rural Affairs

Department
for Environment
Food & Rural Affairs

UK Risk Register Details for Xanthomonas arboricola pv. pruni

This record was last updated on 03/04/2023

Common Names

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Bacterial canker of stone fruits
Bacterial leaf spot of prunus
Bacterial leaf spot of stone fruits
Bacterial shot-hole of stone fruits
Black spot of plum
Shot hole

Scenario and Pathways

Scenario for Risk Register

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Pest is introduced

Pathway Assessed for Entry to UK

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Plants for planting (except seeds bulbs and tubers)

Common Pathways

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Plants for planting (except seeds bulbs and tubers)

Risk Ratings and Current Mitigations

Unmitigated Risks

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Likelihood For "Pest is Introduced" the lowest value of Entry or Establishment, as both are required for a successful introduction. For "Pest Spreads to Maximum Extent" this is an expert judgement on the likelihood of this occurrence. See Guidance Document for more Information Likelihood [1 - 5]				5
Entry The Likelihood of movement of the pest into the UK on a pathway and transfer of that pest to a suitable host. See Guidance Document for more Information Entry [1 - 5]				5
Establishment The likelihood of the pest surviving and perpetuating in the UK for the foreseeable future after it has entered. See Guidance Document for more Information Establishment [1 - 5]				5
Spread The rate at which a pest can expand, by natural dispersal only, within an area. See Guidance Document for more Information Spread [1 - 5]		2
Impact The highest value from economic, environmental or social impacts. See Guidance Document for more Information Impact [1 - 5]			3
Impact - Economic The predicted economic impacts of the pest in the UK. This includes direct effects on yield, quality and possible indirect effects such as trade implications. See Guidance Document for more Information Impact - Economic [1 - 5]			3
Impact - Environmental The proportion of the environmental value of the plant which is likely to be lost through the introduction of the pest. See Guidance Document for more Information Impact - Environmental [1 - 5]	1
Impact - Social The predicted social impacts of a pest in the UK, including effects on tourism, amenities and animal and human health. See Guidance Document for more Information Impact - Social [1 - 5]		2
Value at Risk The value of the hosts or industries at risk from this pest in the UK. See Guidance Document for more Information Value at Risk [1 - 5]			3
Likelihood x Impact The likelihood multiplied by the impact, which shows the risk to the sector. See Guidance Document for more Information Likelihood x Impact [1 - 25]	15
UK Relative Risk Rating Likelihood x Impact x Value at Risk. See Guidance Document for more Information UK Relative Risk Rating [1 - 125]	45

Current Mitigations

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Key mitigation for pest

Regulated quarantine pest (Great Britain) Northern Ireland regulated protected zone quarantine pest.

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

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Likelihood For "Pest is Introduced" the lowest value of Entry or Establishment, as both are required for a successful introduction. For "Pest Spreads to Maximum Extent" this is an expert judgement on the likelihood of this occurrence. See Guidance Document for more Information Likelihood [1 - 5]				4
Entry The Likelihood of movement of the pest into the UK on a pathway and transfer of that pest to a suitable host. See Guidance Document for more Information Entry [1 - 5]				4
Establishment The likelihood of the pest surviving and perpetuating in the UK for the foreseeable future after it has entered. See Guidance Document for more Information Establishment [1 - 5]					5
Spread The rate at which a pest can expand, by natural dispersal only, within an area. See Guidance Document for more Information Spread [1 - 5]		2
Impact The highest value from economic, environmental or social impacts. See Guidance Document for more Information Impact [1 - 5]			3
Impact - Economic The predicted economic impacts of the pest in the UK. This includes direct effects on yield, quality and possible indirect effects such as trade implications. See Guidance Document for more Information Impact - Economic [1 - 5]			3
Impact - Environmental The proportion of the environmental value of the plant which is likely to be lost through the introduction of the pest. See Guidance Document for more Information Impact - Environmental [1 - 5]	1
Impact - Social The predicted social impacts of a pest in the UK, including effects on tourism, amenities and animal and human health. See Guidance Document for more Information Impact - Social [1 - 5]		2
Value at Risk The value of the hosts or industries at risk from this pest in the UK. See Guidance Document for more Information Value at Risk [1 - 5]			3
Likelihood x Impact The likelihood multiplied by the impact, which shows the risk to the sector. See Guidance Document for more Information Likelihood x Impact [1 - 25]	12
UK Relative Risk Rating Likelihood x Impact x Value at Risk. See Guidance Document for more Information UK Relative Risk Rating [1 - 125]	36

Proposed Actions

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Regulation

Deregulation

Management By Industry

Targeted Survey

PRA

Contingency Plan

Publicity

Research

Distribution and Pest Details

Distribution

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Country / Territory		Status	Notes
Europe
	Serbia	Present
	United Kingdom	Absent
	Spain	Present
	Hungary	Present
	Belgium	Present
	Moldova	Present
	Norway	Present
	France	Present
	Germany	Present
	Italy	Present
	Netherlands	Present
	Romania	Present
	Slovenia	Present
	Russia	Present
	Ukraine	Present
	Switzerland	Present
	Montenegro	Present
	Greece	Present (Limited)	Not widely distributed.
North America
	Canada	Present
	Mexico	Present
	United States	Present
South America
	Brazil	Present
	Argentina	Present
	Uruguay	Present
Oceania		Present
	Australia	Present
	New Zealand	Present
Africa		Present
	Zimbabwe	Present
	South Africa	Present
Asia
	Jordan	Present
	Russia	Present
	China	Present
	India	Present
	Japan	Present
	South Korea	Present
	North Korea	Present
	Lebanon	Present
	Pakistan	Present
	Saudi Arabia	Present
	Tajikistan	Present
	Taiwan	Present
Central America
	Bermuda	Present

Type of Pest

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Bacterium

Host or Industry at Risk

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Prunus

Major Hosts

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Prunus L.
Prunus armeniaca L.
Prunus avium ssp./var. avium L.
Prunus cerasus L.
Prunus domestica ssp. domestica L.
Prunus dulcis (Mill.) D.A.Webb
Prunus dulcis var. dulcis (Mill.) D.A.Webb
Prunus laurocerasus L.
Prunus persica Batsch
Prunus persica var. nucipersica Batsch
Prunus salicina Lindl.

Threats to Protected Cultivation

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Forest Tree Pests and Pathogens

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Further Information

PRA

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PRA Availability

PRA not available

Regulation and EPPO listing

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Regulated quarantine pest (Great Britain). Regulated protected zone quarantine pest (Northern Ireland until April 30th 2023). EPPO A2

Actions Indicated

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Action

Statutory action against findings.

General Comments

Bacterial pathogen of Prunus. Intercepted on imported plants at nurseries. Awareness raising can help to reduce the likelihood of introduction and impacts.

Risk Records for this Pest

Xanthomonas arboricola pv. pruni [SELECTED]

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Department for Environment, Food & Rural Affairs

Departmentfor EnvironmentFood & Rural Affairs

UK Risk Register Details for Xanthomonas arboricola pv. pruni

Common Names

Scenario and Pathways

Scenario for Risk Register

Pathway Assessed for Entry to UK

Common Pathways

Risk Ratings and Current Mitigations

Unmitigated Risks

Current Mitigations

Key mitigation for pest

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

Proposed Actions

Proposed Actions

Regulation

Deregulation

Management By Industry

Targeted Survey

PRA

Contingency Plan

Publicity

Research

Distribution and Pest Details

Distribution

Type of Pest

Host or Industry at Risk

Major Hosts

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

Further Information

PRA

PRA Availability

Regulation and EPPO listing

Actions Indicated

Action

General Comments

Risk Records for this Pest

Department
for Environment
Food & Rural Affairs