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UK Risk Register Details for Euwallacea perbrevis

This record was last updated on 21/09/2022

Common Names

  • Tea Shot Hole Borer

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)
  • Wood packaging material

Common Pathways

  • show / hide
  • Plants for planting (except seeds bulbs and tubers)
  • Non-squared wood
  • Wood packaging material
  • Hitchhiking
  • Firewood

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 2
Impact [1 - 5] 3
Value at Risk [1 - 5] 4
Likelihood x Impact [1 - 25] 6
UK Relative Risk Rating [1 - 125] 24

Current Mitigations

  • show / hide

Key mitigation for pest

Regulated quarantine pest (as "non-European Scolytidae spp.")



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 2
Impact [1 - 5] 3
Value at Risk [1 - 5] 4
Likelihood x Impact [1 - 25] 6
UK Relative Risk Rating [1 - 125] 24

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country / Territory Status Notes
Netherlands Present (Limited) Outbreak in glasshouse, under eradication
United Kingdom Absent
North America
United States Present (Limited) Florida, Hawaii
Australia Present
Fiji Present
Papua New Guinea Present
Reunion Present
Brunei Present
China Present
India Present
Indonesia Present
Japan Present
Philippines Present
Singapore Present
Sri Lanka Present
Taiwan Present
Thailand Present
Timor-Leste Present
Vietnam Present

Type of Pest

  • Insect (Coleoptera)

Host or Industry at Risk

  • show / hide

Broadleaved trees

Major Hosts

  • Acacia Miller
  • Albizia (= Albizzia) Durazz.
  • Aleurites J.R. & G.Forst.
  • Annona L.
  • Artocarpus J.R.& G.Forst.
  • Avicennia L.
  • Brosimum Sw.
  • Bursera Jacq. Ex L.
  • Camellia sinensis (L.) O.Kuntze
  • Casearia Jacq.
  • Cedrela P.Br.
  • Erythrina L.
  • Litchi Sonn.
  • Mangifera L.
  • Myristica Gronov.
  • Protium Burm.
  • Terminalia L.
  • Theobroma L.
  • Xylopia L.
  • Citrus

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

  • Broadleaved

Further Information

PRA Availability

UK (2015) - NB before taxonomy of the species group was revised and clarified

Regulation and EPPO listing

  • show / hide

Provisional quarantine pest (Great Britain), quarantine pest (Northern Ireland) (both as Euwallacea fornicatus sensu lato). Quarantine pest (as non-European Scolytidae spp.).

Actions Indicated

  • show / hide


Statutory action against findings

General Comments

A disease complex involving an ambrosia beetle and fungus, native to Asia but now invasive in other countries. The UK climate is likely to be a limiting factor regarding establishment. Watching brief needed for any pest spread into areas with cooler climates.

Further Information


  • show / hide

Key uncertainty for pest

Repeated taxonomic revisions for the species group mean that older data often cannot be unambiguously assigned to a species.


Current distribution






UK distribution

Risk Records for this Pest