UK Plant Health Risk Register

Scenario and Pathways

Scenario for Risk Register

show / hide

Pest spreads to maximum extent

Pathway Assessed for Entry to UK

show / hide

Common Pathways

show / hide

Plants for planting (except seeds bulbs and tubers)
Soil/growing medium

Risk Ratings and Current Mitigations

Unmitigated Risks

show / hide

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]
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]			4
Impact The highest value from economic, environmental or social impacts. See Guidance Document for more Information Impact [1 - 5]				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]		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]				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]		3
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]				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]	20
UK Relative Risk Rating Likelihood x Impact x Value at Risk. See Guidance Document for more Information UK Relative Risk Rating [1 - 125]	100

Current Mitigations

show / hide

Key mitigation for pest

Provisional quarantine pest (Great Britain) and suppression programme

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

show / hide

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]		2
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]				4
Impact The highest value from economic, environmental or social impacts. See Guidance Document for more Information Impact [1 - 5]				4
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]				4
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]			3
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]					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]	8
UK Relative Risk Rating Likelihood x Impact x Value at Risk. See Guidance Document for more Information UK Relative Risk Rating [1 - 125]	40

Proposed Actions

show / hide

Regulation

Deregulation

Management By Industry

Targeted Survey

PRA

Contingency Plan

Publicity

Research

Distribution and Pest Details

Distribution

show / hide

Country / Territory		Status
Europe
	United Kingdom	Present (Limited)
	Ireland	Present
South America
	Argentina	Present
	Chile	Present (Unknown Distribution)
Oceania		Present
	New Zealand	Present

Type of Pest

show / hide

Oomycete

Host or Industry at Risk

show / hide

Rhododendron, Quercus, Vaccinium, Fagus

Major Hosts

show / hide

Aesculus hippocastanum L.
Annona cherimola Mill.
Castanea sativa Mill.
Drimys winteri J.R. & G.Forst.
Gevuina avellana Molina
Hedera helix ssp. helix L.
Ilex aquifolium L.
Leucothoe fontanesiana (Steud.) Sleumer
Liriodendron tulipifera L.
Magnolia L.
Magnolia brooklynensis (M. x brooklynensis) G.Kalmbacher
Magnolia kobus Dc.
Magnolia liliiflora Desr.
Magnolia sargentiana Rehd. & Wils.
Magnolia sprengeri Pamp.
Magnolia wilsonii (Finet & Gagnep.) Rehd.
Magnolia x soulangiana Soulange-Bodin
Pieris formosa (Wall.) D.Don
Pieris japonica (Thunb.) D.Don Ex G.Don
Podocarpus salignus D.Don
Quercus ilex L.
Quercus robur L.
Rhododendron L.
Rhododendron macrophyllum D.Don Ex G.Don
Rhododendron occidentale (Torr. & A.Gray) A.Gray
Rhododendron ponticum L.
Sequoiadendron giganteum (Lindl.) J. Buchholz
Umbellularia californica (Hook. & Arn.) Nutt.
Vaccinium myrtillus L.
Fagus sylvatica L.

Threats to Protected Cultivation

show / hide

Forest Tree Pests and Pathogens

show / hide

Broadleaved

Further Information

PRA

show / hide

PRA Availability

UK (2008), EPPO (2009)

Regulation and EPPO listing

show / hide

Provisional quarantine pest (Great Britain). EPPO A2

Actions Indicated

show / hide

Action

Statutory action against findings.

General Comments

Pathogen of certain tree and shrub species, subject to a containment strategy in the UK.

Our use of Cookies

Department for Environment, Food & Rural Affairs

Departmentfor EnvironmentFood & Rural Affairs

UK Risk Register Details for Phytophthora kernoviae

PRA Document

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