Our use of Cookies

This site uses only cookiesstrictly necessaryto ensure the site works correctly.

Please read about how we use cookies.

Hide this message

Strictly necessary and non-essential cookies

Accept all cookies

Accept necessary cookies only

Set Cookie Preferences

By clicking accept all cookies, you agree to our use of cookies and to our cookie policy.

We use third-party cookies on this site.

You have accepted necessary cookies only

You can change your cookie settings at any time

Hide this message

UK Risk Register Details for Dendrolimus superans

This record was last updated on 28/11/2023

Common Names

  • Japanese Hemlock caterpillar
  • Sakhalin silk moth

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)
  • Cut flowers or branches
  • Non-squared wood
  • Bark
  • Hitchhiking

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 4
Impact [1 - 5] 5
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 15
UK Relative Risk Rating [1 - 125] 75

Current Mitigations

  • show / hide

Key mitigation for pest

Provisional quarantine pest (Great Britain). Prohibition of key pathway

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

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

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
United Kingdom Absent
Asia
Japan Present
Russia Present

Type of Pest

  • Insect (Lepidoptera)

Host or Industry at Risk

  • show / hide

Conifers

Major Hosts

  • Abies Miller
  • Abies sachalinensis (Fr.Schm.) Mast.
  • Larix Mill.
  • Picea A.Dietr.
  • Picea jezoensis var. jezoensis (Sieb. & Zucc.) Carr.
  • Pinus L.
  • Pinus pumila (Pall.) Regel
  • Tsuga Carr.
  • Larix gmelinii

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

  • Coniferous

Further Information

PRA Availability

PRA not available

Regulation and EPPO listing

  • show / hide

Provisional quarantine pest (Great Britain), EPPO A2

Actions Indicated

  • show / hide

Action

Statutory action against findings.

General Comments

Moth pest of conifers currently only known from Asia where it can cause significant defoliation. Current regulations on pathway mitigate risk of entry.

Risk Records for this Pest