UK Plant Health Risk Register

Scenario and Pathways

Scenario for Risk Register

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Pest is introduced

Pathway Assessed for Entry to UK

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Bulbs or tubers

Common Pathways

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Plants for planting (except seeds bulbs and tubers)
Bulbs or tubers
Cut flowers or branches
insect vectors

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]	1
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]	1
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]		3
Impact The highest value from economic, environmental or social impacts. See Guidance Document for more Information Impact [1 - 5]	1
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]	1
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]	1
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]	1
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]	1
UK Relative Risk Rating Likelihood x Impact x Value at Risk. See Guidance Document for more Information UK Relative Risk Rating [1 - 125]	1

Current Mitigations

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Key mitigation for pest

Regulated quarantine pest. Main vector is regulated.

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]	1
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]		3
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]	1
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]		3
Impact The highest value from economic, environmental or social impacts. See Guidance Document for more Information Impact [1 - 5]	1
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]	1
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]	1
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]	1
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]	1
UK Relative Risk Rating Likelihood x Impact x Value at Risk. See Guidance Document for more Information UK Relative Risk Rating [1 - 125]	1

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
	United Kingdom	Absent
	Spain	Present (Limited)	Canary Islands
	Netherlands	Present	in specific parts of the Member State, where host crop(s) are grown.
	Portugal	Present (Limited)	Under eradication
	Hungary	Present
	Greece	Present
North America
	United States	Present
South America
	Peru	Present
	Argentina	Present
	Brazil	Present
Africa
	Egypt	Present
	Ethiopia	Present
	Kenya	Present
	Madagascar	Present
	Nigeria	Present
	Rwanda	Present
	Tanzania	Present
	Uganda	Present
	Zambia	Present
Asia
	China	Present
	Israel	Present
	South Korea	Present
	Taiwan	Present
Central America
	Costa Rica	Present
	Guatemala	Present
	Honduras	Present

Type of Pest

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Virus or Viroid

Host or Industry at Risk

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Ipomoea batatas

Major Hosts

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Ipomoea batatas (L.) Poir./Lam.
Plants (general)

Threats to Protected Cultivation

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Both protected crops and outdoor production

Forest Tree Pests and Pathogens

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N/A

Further Information

PRA

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PRA Availability

PRA not available

Regulation and EPPO listing

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Regulated quarantine pest

Actions Indicated

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Action

Statutory action in line with legislation

General Comments

Sub-tropical virus affecting sweet potatoes, unlikely to establish outside in UK. Host crop not widely grown in the UK, although it is becoming more popular, with some protected cultivation.

Further Information

Uncertainty

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Key uncertainty for pest

Rapid addition via a workshop. Some areas of assessment may require more research.

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Department for Environment, Food & Rural Affairs

Departmentfor EnvironmentFood & Rural Affairs

UK Risk Register Details for Sweet potato chlorotic stunt virus

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

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

Further Information

Uncertainty

Key uncertainty for pest

Climate

Current distribution

Hosts

Impact

Pathways

Regulation

Taxonomy

UK distribution

Risk Records for this Pest

Department
for Environment
Food & Rural Affairs