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UK Risk Register Details for Scirtothrips dorsalis

This record was last updated on 31/07/2023

Common Names

  • assam thrips
  • castor thrips
  • chilli thrips
  • yellow tea thrips

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest is introduced

Pathway Assessed for Entry to UK

  • show / hide
  • Fruits or vegetables

Common Pathways

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

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 2
Impact [1 - 5] 4
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 12
UK Relative Risk Rating [1 - 125] 60

Current Mitigations

  • show / hide

Key mitigation for pest

Regulated quarantine pest



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 2
Impact [1 - 5] 4
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 8
UK Relative Risk Rating [1 - 125] 40

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country / Territory Status Notes
Netherlands Present (Limited) Under Eradication
Spain Present
Denmark Absent Pest eradicated.
Türkiye Present Not widely distributed
United Kingdom Present (Limited) Under official control
North America
United States Present
Mexico Present
South America
Suriname Present
Venezuela Present
Peru Present
Brazil Present (Limited)
Australia Present
Papua New Guinea Present
Solomon Islands Present
Cote d'Ivoire Present
Kenya Present
Uganda Present
Bangladesh Present
Brunei Present
China Present
India Present
Indonesia Present
Israel Present
Japan Present
Malaysia Present
Pakistan Present
Philippines Present
South Korea Present
Sri Lanka Present
Taiwan Present
Thailand Present
Vietnam Present
Cambodia Present
Myanmar Present
Central America
Barbados Present
Guadeloupe Present
Jamaica Present
Puerto Rico Present
Saint Lucia Present
Saint Vincent and the Grenadines Present
Trinidad and Tobago Present

Type of Pest

  • Insect (Thysanoptera)

Host or Industry at Risk

  • show / hide

Total protected cultivation

Major Hosts

  • Abelmoschus esculentus (L.) Moench
  • Acacia auriculaeformis A.Cunn. Ex Benth.
  • Allium cepa L.
  • Allium sativum L.
  • Alternanthera sessilis R. Brown ex De Candolle
  • Anacardium occidentale L.
  • Arachis hypogaea L.
  • Asparagus officinalis L.
  • Beta vulgaris L.
  • Camellia sinensis (L.) O.Kuntze
  • Capsicum annuum L.
  • Capsicum frutescens L.
  • Citrofortunella microcarpa (Bunge) Wijnands
  • Cucurbita pepo L.
  • Dahlia pinnata Cav.
  • Dimocarpus longan Lour.
  • Diospyros kaki L.
  • Dolichos lablab L.
  • Fagopyrum esculentum Moench
  • Ficus L.
  • Fortunella Swing.
  • Fragaria L.
  • Glycine max (L.) Merr.
  • Gossypium L.
  • Helianthus annuus L.
  • Hevea brasiliensis (Willd. Ex A.Juss.) Muell.Arg.
  • Hydrangea L.
  • Ipomoea batatas (L.) Poir./Lam.
  • Solanum lycopersicum L.
  • Mangifera indica L.
  • Melilotus indicus (= indica) (L.) All.
  • Mimosa L.
  • Morus L.
  • Nelumbo Adans.
  • Nelumbo lutea (Willd.) Pers.
  • Nelumbo nucifera Gaertn.
  • Nephelium lappaceum L.
  • Nicotiana tabacum L.
  • Passiflora edulis Sims
  • Phaseolus aureus Roxb.
  • Phaseolus vulgaris L.
  • Poncirus trifoliata (Linnaeus) Rafinesque
  • Populus deltoides Bartr. Ex Marsh.
  • Portulaca oleracea L.
  • Prunus persica Batsch
  • Punica granatum L.
  • Pyrus L.
  • Ricinus communis L.
  • Rubus L.
  • Saraca L.
  • Solanum L.
  • Solanum melongena L.
  • Solanum nigrum L.
  • Syzygium samarangense (Blume) Merr. & L.M.Perry
  • Tamarindus indica L.
  • Viburnum L.
  • Vitis vinifera L.
  • Zea mays L.
  • Ziziphus mauritiana Lam.
  • Citrus
  • Citroncirus
  • Actinidia deliciosa (A. Chev.) Liang & A.R. Ferg.
  • Acacia brownii (Poir.) Steud.

Threats to Protected Cultivation

  • Only protected crops

Forest Tree Pests and Pathogens

Further Information

PRA Availability

UK (2002) EPPO (2009)

Regulation and EPPO listing

  • show / hide

Regulated quarantine pest. EPPO A2

Actions Indicated

  • show / hide


Statutory action

General Comments

Listed thrips pest which is highly polyphagous and has been intercepted on a number of hosts.

Risk Records for this Pest