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UK Risk Register Details for Xylosandrus crassiusculus

This record was last updated on 08/11/2022

Common Names

  • Apple bark beetle
  • Asian ambrosia beetle
  • Granulate ambrosia beetle

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)
  • Non-squared wood
  • Squared wood

Common Pathways

  • show / hide
  • Plants for planting (except seeds bulbs and tubers)
  • Cut flowers or branches
  • Non-squared wood
  • Squared wood
  • Wood packaging material

Risk Ratings and Current Mitigations

Unmitigated Risks

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

Current Mitigations

  • show / hide

Key mitigation for pest



Industry Scheme

Contingency Plan



Mitigated Risks

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

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country / Territory Status Notes
Spain Present (Limited)
Slovenia Present (Limited) Under eradication
Italy Present (Limited)
Switzerland Present (Limited) Present, only in some parts of the Member State concerned.
France Present (Limited) under eradication
United Kingdom Absent
North America Present
United States Present (Limited)
South America
Brazil Present
French Guiana Present
Australia Present (Limited)
New Zealand Present
Palau Present
Papua New Guinea Present
Samoa Present
Cameroon Present
Congo (Democratic Rep.) Present
Cote d'Ivoire Present
Equatorial Guinea Present
Gabon Present
Ghana Present
Kenya Present
Madagascar Present
Mauritania Present
Mauritius Present
Nigeria Present
Seychelles Present
Sierra Leone Present
Tanzania Present
Bangladesh Present
Bhutan Present
China Present
India Present
Indonesia Present
Israel Present
Japan Present
South Korea Present
North Korea Present
Malaysia Present
Myanmar Present
Nepal Present
Pakistan Present
Philippines Present
Sri Lanka Present
Taiwan Present
Thailand Present
Vietnam Present
Central America
Panama Present
Costa Rica Present
Guatemala Present

Type of Pest

  • Insect (Coleoptera)

Host or Industry at Risk

  • show / hide

Boradleaved trees

Major Hosts

  • Acacia Miller
  • Alnus Mill.
  • Aucoumea klaineana Pierre
  • Betula L.
  • Camellia sinensis (L.) O.Kuntze
  • Carica papaya L.
  • Carya illinoinensis K.Koch
  • Ceratonia siliqua L.
  • Cocos nucifera L.
  • Coffea arabica L.
  • Cornus L.
  • Diospyros kaki L.
  • Eucalyptus L'Herit.
  • Ficus carica L.
  • Fraxinus L.
  • Hibiscus L.
  • Koelreuteria Laxm.
  • Lagerstroemia indica L.
  • Liquidambar styraciflua L.
  • Magnolia L.
  • Malus Mill.
  • Malus domestica Borkhausen
  • Mangifera indica L.
  • Platanus L.
  • Populus L.
  • Prunus L.
  • Prunus avium ssp./var. avium L.
  • Prunus domestica ssp. domestica L.
  • Prunus persica Batsch
  • Quercus L.
  • Salix L.
  • Tectona grandis L.
  • Theobroma cacao L.
  • Ulmus L.
  • Vitis L.
  • Broadleaved trees L.

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

  • Broadleaved

Further Information

PRA Availability

UK (2015)

Regulation and EPPO listing

  • show / hide

EPPO Alert

Actions Indicated

  • show / hide


Statutory action against findings.

General Comments

Ambrosia beetle which can affect a wide range of broadleaved trees, widespread in Africa, Asia and parts of the US, with outbreaks in France and Italy. The UK climate is unlikely to be suitable for the pest to thrive and cause significant damage but needs to be investigated through research. Premises involved in importing wood and host plants from Italy in particular, where official measures are not being taken, should source material carefully.

Risk Records for this Pest