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UK Risk Register Details for Corythucha ciliata

This record was last updated on 30/11/2021

Common Names

  • Sycamore lace bug

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] 3
Value at Risk [1 - 5] 4
Likelihood x Impact [1 - 25] 12
UK Relative Risk Rating [1 - 125] 48

Current Mitigations

  • show / hide

Key mitigation for pest

Restrictions on plane tree movement (regulations targeted at a different pest)



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 3
Impact [1 - 5] 3
Value at Risk [1 - 5] 4
Likelihood x Impact [1 - 25] 9
UK Relative Risk Rating [1 - 125] 36

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country / Territory Status Notes
Europe Present (Widespread)
United Kingdom Absent
North America
Canada Present (Widespread)
United States Present (Widespread)
Australia Present (Limited)
China Present
Japan Present
South Korea Present

Type of Pest

  • Insect (Hemiptera)

Host or Industry at Risk

  • show / hide


Major Hosts

  • Broussonetia papyrifera (L.) Vent.
  • Carya ovata (Mill.) K.Koch
  • Chamaedaphne Moench
  • Fraxinus L.
  • Liquidambar styraciflua L.
  • Platanus L.
  • Platanus occidentalis L.
  • Platanus orientalis L.
  • Platanus racemosa Nutt.
  • Platanus wrightii P.Wats.
  • Platanus x acerifolia (Aiton) Willdenow
  • Quercus laurifolia Michx.

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

  • Broadleaved

Further Information

PRA Availability


Regulation and EPPO listing

  • show / hide

Not currently listed

Actions Indicated

  • show / hide


Statutory action on findings.

General Comments

Lace bug which affects plane and which is present in a number of European countries, with a single outbreak eradicated in the UK. A PRA will help to better assess the level of risk to the UK.

Risk Records for this Pest