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 Xiphinema californicum

This record was last updated on 16/11/2020

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest is introduced with the pathogen

Pathway Assessed for Entry to UK

  • show / hide
  • Plants for planting (with soil)

Common Pathways

  • show / hide
  • Plants for planting (except seeds bulbs and tubers)
  • Soil/growing medium

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 1
Impact [1 - 5] 3
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 9
UK Relative Risk Rating [1 - 125] 27

Current Mitigations

  • show / hide

Key mitigation for pest

Regulated quarantine pest and prohibition of key pathway (soil)



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 1
Impact [1 - 5] 3
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 6
UK Relative Risk Rating [1 - 125] 18

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country / Territory Status Notes
United Kingdom Absent
North America Present
United States Present (Limited)
Mexico Present
South America Present
Brazil Present
Chile Present
Peru Present

Type of Pest

  • Nematode (Dorylaimida)

Host or Industry at Risk

  • show / hide

Vitis, Zea mays, Rosa

Major Hosts

  • Abies concolor var. concolor (Gord. & Glend.)Lindl. Ex Hild.
  • Buphthalmum L.
  • Calocedrus Kurz
  • Canna L.
  • Cocos nucifera L.
  • Cupressus macnabiana Murr.
  • Cupressus macrocarpa Hartw.
  • Ipomoea batatas (L.) Poir./Lam.
  • Juniperus osteosperma (Torr.) Little
  • Medicago sativa L.
  • Pelargonium L'Herit. Ex Ait.
  • Persea americana Mill.
  • Pinus attenuata Lemm.
  • Pinus coulteri D.Don
  • Pinus flexilis James
  • Pinus jeffreyi Grev. & Balf./Murr.
  • Pinus monophylla Torr. & Frem.
  • Pinus monticola Dougl. Ex D.Don
  • Pinus ponderosa Dougl. Ex P. & C.Laws.
  • Pinus radiata D.Don
  • Pinus sabiniana Dougl. Ex D.Don
  • Populus tremuloides Michx.
  • Pseudotsuga menziesii var. menziesii (Mirbel) Franco
  • Quercus kelloggii Newb.
  • Rosa L.
  • Salix lutea Nutt.
  • Sequoia sempervirens (D.Don) Endl.
  • Sorghum Moench
  • Vitis L.
  • Zea mays L.
  • Citrus

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

Further Information

PRA Availability

PRA not available

Regulation and EPPO listing

  • show / hide

Regulated quarantine pest. EPPO A1

Actions Indicated

  • show / hide


Statutory action against findings.

General Comments

Regulated nematode pest which is also a virus vector. There have been interceptions of this pest in the past. Listing and regulations on soil/growing material associated with planting material help to mitigate the risk of entry.

Risk Records for this Pest