Department for Environment, Food & Rural Affairs

Department
for Environment
Food & Rural Affairs

UK Risk Register Details for Frankliniella occidentalis

Pest has been archived

This pest has been assessed for the Risk Register and is considered to pose a low risk to the UK. The information on this pest was correct as of 05/11/2019, but is no longer actively maintained. It will only be updated if new information is received which indicates the potential for a significant increase in risk to the UK.

This record was last updated on 13/08/2021

Common Names

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alfalfa thrips
western flower thrips

Scenario and Pathways

Scenario for Risk Register

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Pest spreads to maximum extent

Pathway Assessed for Entry to UK

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Common Pathways

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Plants for planting (except seeds bulbs and tubers)
Cut flowers or branches
Fruits or vegetables

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]		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]		2
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]			4
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]				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

Current Mitigations

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Key mitigation for pest

Unregulated, but significant industry experience from past action

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]		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]		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]	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]				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]	6
UK Relative Risk Rating Likelihood x Impact x Value at Risk. See Guidance Document for more Information UK Relative Risk Rating [1 - 125]	30

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
	United Kingdom	Present (Widespread)
	Belgium	Present
	Bulgaria	Present
	Croatia	Present
	Cyprus	Present
	Czech Republic	Present
	Denmark	Present
	Estonia	Present
	Finland	Present
	France	Present
	Germany	Present
	Greece	Present
	Guernsey	Present
	Hungary	Present
	Ireland	Present
	Italy	Present
	Latvia	Present
	Lithuania	Present
	Austria	Present
	Malta	Present
	Netherlands	Present
	Poland	Present
	Portugal	Present
	Albania	Present
	Romania	Present
	Bosnia-Herzegovina	Present
	Slovakia	Present
	Republic of North Macedonia	Present
	Slovenia	Present
	Montenegro	Present
	Spain	Present
	Norway	Present
	Sweden	Present
	Russia	Present
	Serbia	Present
	Switzerland	Present
	Türkiye	Present
	Ukraine	Present
North America		Present
	Canada	Present
	Mexico	Present
	United States	Present
South America		Present
	Argentina	Present
	Brazil	Present
	Chile	Present
	Colombia	Present
	Ecuador	Present
	French Guiana	Present
	Guyana	Present
	Peru	Present
	Uruguay	Present
	Venezuela	Present
Oceania		Present
	Australia	Present
	New Zealand	Present
Africa		Present
	Algeria	Present
	Morocco	Present
	Kenya	Present
	Reunion	Present
	South Africa	Present
	[Kingdom of] eSwatini	Present
	Uganda	Present
	Zimbabwe	Present
Asia
	Azerbaijan	Present
	China	Present
	Iran	Present
	India	Present
	Israel	Present
	Japan	Present
	Kazakhstan	Present
	South Korea	Present
	Kuwait	Present
	Malaysia	Present
	Singapore	Present
	Sri Lanka	Present
	Thailand	Present
	Uzbekistan	Present
	Russia	Present
Central America
	Costa Rica	Present
	Dominican Republic	Present
	Guadeloupe	Present
	Guatemala	Present
	Martinique	Present
	Puerto Rico	Present

Type of Pest

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Insect (Thysanoptera)

Host or Industry at Risk

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Total protected cultivation

Major Hosts

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Allium cepa L.
Capsicum annuum L.
Cucumis sativus L.
Cucurbitaceae
Daucus carota subsp. sativus
Chrysanthemum x morifolium Ramat.
Dianthus caryophyllus L.
Fragaria ananassa (F. x ananassa) Duch.
Gerbera jamesonii H.Bolus Ex Hook.F.
Gladiolus hybrids
Lathyrus odoratus L.
Solanum lycopersicum L.
Medicago sativa L.
Nicotiana tabacum L.
Phaseolus vulgaris L.
Pisum sativum Linnaeus
Prunus armeniaca L.
Prunus domestica ssp. domestica L.
Prunus persica Batsch
Rosa L.
Rosa Large-flowered bush hybrids
Sinningia speciosa (Lodd.) Hiern
Streptocarpus Lindl.
Vitis vinifera L.

Threats to Protected Cultivation

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Only protected crops

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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EPPO A2

Actions Indicated

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Action

No statutory action

General Comments

Damaging polyphagous glasshouse pest, present in UK since 1986, managed by industry.

Risk Records for this Pest

Frankliniella occidentalis [SELECTED] [ARCHIVED]

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Department for Environment, Food & Rural Affairs

Departmentfor EnvironmentFood & Rural Affairs

UK Risk Register Details for Frankliniella occidentalis

Pest has been archived

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