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UK Risk Register Details for Leucaspis pusilla

This record was last updated on 14/12/2023

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest spreads to maximum extent

Pathway Assessed for Entry to UK

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

Common Pathways

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

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 2
Impact [1 - 5] 2
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 4
UK Relative Risk Rating [1 - 125] 20

Current Mitigations

  • show / hide

Key mitigation for pest

Prohibition of key hosts from some parts of the current range



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 2
Impact [1 - 5] 2
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 4
UK Relative Risk Rating [1 - 125] 20

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country / Territory Status Notes
United Kingdom Present (Limited) Only known from one location
Albania Present
Austria Present
Bulgaria Present
Croatia Present
Cyprus Present
Czech Republic Present
Germany Present
Hungary Present
Malta Present
Poland Present
Romania Present
Russia Present
Switzerland Present
Türkiye Present
France Present including Corsica
Ukraine Present including Crimea
Greece Present including Crete
Italy Present including Sardinia and Sicily
Portugal Present including Azores and Madeira
Spain Present including Balearic Islands and Canary Islands
South America
Argentina Present
Algeria Present
Egypt Present
Morocco Present
Azerbaijan Present
Georgia Present
Iran Present
Iraq Present
Israel Present
Pakistan Present
Syria Present

Type of Pest

  • Insect (Hemiptera)

Host or Industry at Risk

  • show / hide


Major Hosts

  • Abies alba Miller
  • Cedrus Trew
  • Cedrus atlantica (Endl.) Manetti Ex Carr.
  • Pinus L.
  • Pinus ayacahuite Ehrenb.
  • Pinus brutia Tenore
  • Pinus canariensis C.Smith/Sweet Ex Spreng.
  • Pinus halepensis Mill.
  • Pinus mugo ssp. mugo Turra
  • Pinus nigra Arnold
  • Pinus palustris Mill.
  • Pinus pinaster Soland In Ait.
  • Pinus pinea L.
  • Pinus ponderosa Dougl. Ex P. & C.Laws.
  • Pinus radiata D.Don
  • Pinus roxburghii Sargent
  • Pinus strobus L.
  • Pinus sylvestris Linnaeus
  • Pinus devoniana Lindl.

Threats to Protected Cultivation

  • N/A

Forest Tree Pests and Pathogens

  • Coniferous

Further Information

PRA Availability

PRA not available

Regulation and EPPO listing

  • show / hide

Not currently listed

Actions Indicated

  • show / hide


No statutory action.

General Comments

Scale insect which feeds on pine trees and some other conifers. Native to Europe, the first UK population was found at one location in London in 2023 on pine trees in an urban environment. Limited evidence of impacts in the native and introduced range of the pest, and it appears to only cause noticeable impacts in urban environments, where hosts are exposed to other environmental stressors.

Further Information


  • show / hide

Key uncertainty for pest

Whether there are additional, undetected, UK populations.


Current distribution






UK distribution

Risk Records for this Pest