UK Risk Register Details for Thaumetopoea pityocampa

This record was last updated on 07/01/2021

Common Names

  • Pine processionary 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
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] 4
Spread [1 - 5] 2
Impact [1 - 5] 4
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 16
UK Relative Risk Rating [1 - 125] 80

Current Mitigations

  • show / hide

Key mitigation for pest

Regulated quarantine pest (Great Britain, Northern Ireland may differ). Statutory tree notification scheme.



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 2
Impact [1 - 5] 4
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 12
UK Relative Risk Rating [1 - 125] 60

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country / Territory Status Notes
Europe Present
Albania Present
Montenegro Present
Switzerland Present
Turkey Present
Spain Present
Austria Present
Bulgaria Present
Croatia Present
Cyprus Present
France Present
Greece Present
Hungary Present
Italy Present
Portugal Present
United Kingdom Absent
Africa Present
Algeria Present
Libya Present
Morocco Present
Tunisia Present

Type of Pest

  • Insect (Lepidoptera)

Host or Industry at Risk

  • show / hide


Major Hosts

  • Cedrus Trew
  • Cedrus atlantica (Endl.) Manetti Ex Carr.
  • Larix decidua Mill.
  • Pinus L.
  • Pinus canariensis C.Smith/Sweet Ex Spreng.
  • Pinus halepensis Mill.
  • Pinus nigra Arnold
  • Pinus pinea L.
  • Pinus radiata D.Don
  • Pinus sylvestris Linnaeus
  • Pinus pinaster subsp. escarena (Risso) K.Richt.

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

  • Coniferous

Further Information

PRA Availability

UK (2012), UK (2015)

Regulation and EPPO listing

  • show / hide

Regulated quarantine pest (Great Britain, Northern Ireland may differ)

Actions Indicated

  • show / hide


Statutory action against findings. Statutory notification scheme for imported pine plants. Awareness raising.

General Comments

Regulated moth pest of pines which has both plant and human health impacts, spreading north through France. Statutory notification scheme is in place to gauge level of trade in pine trade and facilitate monitoring.

Risk Records for this Pest