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UK Risk Register Details for Takahashia japonica

This record was last updated on 13/07/2022

Common Names

  • String cottony scale

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

Current Mitigations

  • show / hide

Key mitigation for pest

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

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

Proposed Actions

Proposed Actions

Regulation

Deregulation

Management By Industry

Targeted Survey

PRA

Contingency Plan

Publicity

Research

Distribution and Pest Details

Distribution

Country / Territory Status Notes
Europe
Croatia Present
Italy Present
United Kingdom Absent
Asia
China Present
Japan Present
South Korea Present

Type of Pest

  • Insect (Hemiptera)

Host or Industry at Risk

  • show / hide

Broadleaved trees

Major Hosts

  • Acer pseudoplatanus L.
  • Albizia julibrissin Durazz.
  • Alnus japonica (Thunb.) Steud.
  • Carpinus betulus L.
  • Celtis australis L.
  • Celtis sinensis Pers.
  • Cornus officinalis Sieb. & Zucc.
  • Cydonia oblonga Mill.
  • Diospyros kaki L.
  • Juglans regia L.
  • Lespedeza Michx.
  • Liquidambar styraciflua L.
  • Magnolia hypoleuca Sieb. & Zucc.
  • Morus alba L.
  • Morus nigra L.
  • Parthenocissus tricuspidata (Sieb. & Zucc.) Planch.
  • Prunus cerasifera Ehrh.
  • Prunus salicina Lindl.
  • Pyrus pyrifolia (Burm.F.) Nakai
  • Robinia L.
  • Salix chaenomeloides Kimura
  • Styphnolobium japonicum L.
  • Woody plants
  • Zelkova serrata (Thunb. Ex Murr.) Makino
  • Citrus

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

  • Broadleaved

Further Information

PRA Availability

PRA not available

Regulation and EPPO listing

  • show / hide

Not currently listed

Actions Indicated

  • show / hide

Action

No statutory action

General Comments

Scale insect present in East Asia and invasive in Italy, polyphagous on deciduous, woody trees. Unlikely to pose a significant threat to UK plant health.

Further Information

Uncertainty

  • show / hide

Key uncertainty for pest

Suitability of the UK climate.

Climate

Current distribution

Hosts

Impact

Pathways

Regulation

Taxonomy

UK distribution

Risk Records for this Pest