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UK Risk Register Details for Eotetranychus lewisi

This record was last updated on 06/06/2023

Common Names

  • Lewis spider mite

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest is introduced

Pathway Assessed for Entry to UK

  • show / hide
  • Plants for planting (except seeds bulbs and tubers)

Common Pathways

  • show / hide
  • Plants for planting (except seeds bulbs and tubers)

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 4
Spread [1 - 5] 3
Impact [1 - 5] 2
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 8
UK Relative Risk Rating [1 - 125] 24

Current Mitigations

  • show / hide

Key mitigation for pest

Regulated quarantine pest



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 3
Impact [1 - 5] 2
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 6
UK Relative Risk Rating [1 - 125] 18

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country / Territory Status Notes
Switzerland Present Absent, pest eradicated.
Poland Absent Pest eradicated
Portugal Present (Limited) Madeira. Under eradication
Germany Absent Pest erradicated
United Kingdom Absent Outbreak eradicated
Netherlands Absent outbreaks eradicated
North America
Canada Present
United States Present
Mexico Present
South America
Ecuador Present
Bolivia Present
Chile Present
Colombia Present
Peru Present
Libya Present
South Africa Present
Japan Present
Philippines Present
Taiwan Present
Central America
Costa Rica Present
El Salvador Present
Guatemala Present
Honduras Present
Nicaragua Present
Panama Present

Type of Pest

  • Mite

Host or Industry at Risk

  • show / hide

Total protected cultivation

Major Hosts

  • Carica papaya L.
  • Citrus limon (Linnaeus) N.L.Burman
  • Citrus sinensis (Linnaeus) Osbeck
  • Euphorbia marginata Pursh
  • Euphorbia pulcherrima Willd. ex Klotzsch
  • Ricinus communis L.
  • Rosa L.
  • Citrus
  • Herbaceous ornamental plants

Threats to Protected Cultivation

  • Only protected crops

Forest Tree Pests and Pathogens

  • N/A

Further Information

PRA Availability

EFSA (2017)

Regulation and EPPO listing

  • show / hide

Regulated quarantine pest

Actions Indicated

  • show / hide


Statutory action against findings

General Comments

Polyphagous spider mite pest, native to the Americas but has been introduced to other parts of the world.

Risk Records for this Pest