UK Risk Register Details for Lepidosaphes ussuriensis

Common Names

  • Ussuri oystershell scale
  • Ussurian comma 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
This section is currently being developed as part of the next phase of the Risk Register.

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 1
Impact [1 - 5] 3
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 9
UK Relative Risk Rating [1 - 125] 45

Current Mitigations

  • show / hide

Key mitigation for pest

General inspection of plants for planting

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 1
Impact [1 - 5] 3
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 6
UK Relative Risk Rating [1 - 125] 30

Proposed Actions

Proposed Actions

Regulation

Deregulation

Management By Industry

Targeted Survey

PRA

Contingency Plan

Publicity

Research

Distribution and Pest Details

Distribution

Country Status Notes
Europe
United Kingdom Absent
Russia Present (Limited)
Asia
China Present
Japan Present
South Korea Present

Type of Pest

  • Insect (Hemiptera)

Host or Industry at Risk

  • show / hide

Broadleaved trees

Major Hosts

  • Alnus hirsuta (Spach) Rupr.
  • Betula L.
  • Euonymus hamiltoniana var. maackii Wall.
  • Ficus L.
  • Malus Mill.
  • Malus baccata (Linnaeus) Borkhausen
  • Malus mandshurica (Maxim.) Kom. ex Juz
  • Morus L.
  • Physocarpus amurensis (Maxim.) Maxim.
  • Populus L.
  • Populus maximowiczii Henry
  • Populus suaveolens Fisch.
  • Populus tremula L.
  • Prunus L.
  • Pyrus L.
  • Salix L.
  • Syringa reticulata var. mandschurica (Blume) Hara (Maxim.) Hara
  • Ulmus L.
  • Ulmus japonica (Rehd.) Sarg.
  • Ulmus laciniata (Trautv.) Mayr
  • Ulmus pumila L.
  • Vitis vinifera ssp. vinifera L.

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

  • Broadleaved

Further Information

PRA Availability

PRA not available

EU and EPPO Listing

EPPO A2

Actions Indicated

  • show / hide

Action

Statutory action against interceptions.

General Comments

Scale insect affecting a range of broadleaved trees in Asia. EU regulation of some hosts and import inspections mitigate the risk of introduction.

Risk Records for this Pest