Department for Environment, Food & Rural Affairs

Department
for Environment
Food & Rural Affairs

UK Risk Register Details for Rhizoctonia solani

This record was last updated on 24/01/2023

Common Names

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Areolate leaf spot
Black scurf of potato
Black speck of potato
Bordered sheath spot of rice
Bottom rot of lettuce
Collar rot
Damping-off of seedlings
Foot rot
Fruit rot
Leaf blight of yam
Sharp eye spot of cereals
Sore shin of tobacco
Stem canker
Stem rot of cauliflower
Stem rot of potato
Tuber soft rot of yam
Web blight

Scenario and Pathways

Scenario for Risk Register

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Pathway Assessed for Entry to UK

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Common Pathways

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

Current Mitigations

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

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
Europe
	Austria	Present
	Bulgaria	Present
	Croatia	Present
	Czech Republic	Present
	Denmark	Present
	Finland	Present
	France	Present
	Germany	Present
	Greece	Present
	Hungary	Present
	Italy	Present
	Lithuania	Present
	Montenegro	Present
	Netherlands	Present
	Norway	Present
	Poland	Present
	Romania	Present
	Russia	Present
	Serbia	Present
	Slovakia	Present
	Spain	Present
	Sweden	Present
	Switzerland	Present
	Türkiye	Present
	United Kingdom	Present (Widespread)
North America
	Canada	Present
	Mexico	Present
	United States	Present
South America
	Argentina	Present
	Bolivia	Present
	Brazil	Present
	Chile	Present
	Colombia	Present
	Guyana	Present
	Paraguay	Present
	Peru	Present
	Suriname	Present
	Uruguay	Present
	Venezuela	Present
Oceania
	Australia	Present
	New Zealand	Present
	Papua New Guinea	Present
	Samoa	Present
Africa
	South Africa	Present
	Tanzania	Present
	Tunisia	Present
	Uganda	Present
	Zambia	Present
	Zimbabwe	Present
	Burundi	Present
	Cameroon	Present
	Congo (Democratic Rep.)	Present
	Egypt	Present
	Ethiopia	Present
	Kenya	Present
	Madagascar	Present
	Malawi	Present
	Mauritius	Present
	Mozambique	Present
	Nigeria	Present
	Rwanda	Present
	Senegal	Present
	Sierra Leone	Present
Asia
	Bangladesh	Present
	China	Present
	India	Present
	Indonesia	Present
	Iran	Present
	Iraq	Present
	Israel	Present
	Japan	Present
	Laos	Present
	Lebanon	Present
	Malaysia	Present
	Nepal	Present
	North Korea	Present
	Oman	Present
	Pakistan	Present
	Philippines	Present
	Singapore	Present
	South Korea	Present
	Sri Lanka	Present
	Syria	Present
	Taiwan	Present
	Thailand	Present
	Vietnam	Present
Central America
	Barbados	Present
	Costa Rica	Present
	Cuba	Present
	Dominican Republic	Present
	Guadeloupe	Present
	Honduras	Present
	Jamaica	Present
	Martinique	Present
	Panama	Present
	Puerto Rico	Present
	Saint Kitts and Nevis	Present
	Trinidad and Tobago	Present

Type of Pest

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Fungus

Host or Industry at Risk

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Major Hosts

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Solanum tuberosum L.
Plants (general)

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 non quarantine pest (as Thanatephorus cucumeris)

Actions Indicated

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Action

No current Actions Indicated

General Comments

The Risk Register entry for this pest is extremely incomplete and it cannot be compared with other pests on the Risk Register at the current time. As this is a Regulated Non Quarantine Pest (RNQP) listed in the legislation, we are making available the information we have gathered on the pest so far. It is possible that we will add new information to this pest entry in due course, but as there are a great many RNQPs this may take some time.

Risk Records for this Pest

Rhizoctonia solani [SELECTED]

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Department for Environment, Food & Rural Affairs

Departmentfor EnvironmentFood & Rural Affairs

UK Risk Register Details for Rhizoctonia solani

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