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UK Risk Register Details for Listroderes difficilis

This record was last updated on 18/08/2021

Common Names

  • Sugarbeet webworm
  • Vegetable weevil
  • Weevil, Australian tomato

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest is introduced

Pathway Assessed for Entry to UK

  • show / hide
  • Hitchhiking

Common Pathways

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

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 2
Impact [1 - 5] 3
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] 2
Spread [1 - 5] 2
Impact [1 - 5] 3
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
France Present
Portugal Present
Spain Present (Limited)
United Kingdom Absent
North America
United States Present
South America
Argentina Present
Bolivia Present
Brazil Present
Chile Present
Paraguay Present
Uruguay Present
Venezuela Present
Australia Present
New Caledonia Present
New Zealand Present
Morocco Present
South Africa Present
Israel Present
Japan Present
South Korea Present
Taiwan Present

Type of Pest

  • Insect (Coleoptera)

Host or Industry at Risk

  • show / hide

Total outdoor production

Major Hosts

  • Allium cepa L.
  • Allium sativum L.
  • Arachis hypogaea L.
  • Beta vulgaris L.
  • Brassica napus ssp. napus L.
  • Brassica oleracea L.
  • Capsicum annuum L.
  • Chrysanthemum L.
  • Cichorium endivia Linnaeus
  • Daucus carota L.
  • Gynura bicolor (Roxb. Ex Willd.) Dc.
  • Lactuca sativa L.
  • Solanum lycopersicum L.
  • Malva L.
  • Morus alba L.
  • Nicotiana tabacum L.
  • Pastinaca sativa L.
  • Petroselinum crispum (Mill.) Nyman Ex A. W. Hill
  • Raphanus raphanistrum L.
  • Solanum melongena L.
  • Solanum tuberosum L.
  • Spinacia oleracea L.

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

Further Information

PRA Availability

UK (1996)

Regulation and EPPO listing

  • show / hide

Not currently listed

Actions Indicated

  • show / hide


No current Actions Indicated

General Comments

Polyphagous weevil. Awareness needs to be maintained due to the risk of entry as a contaminating pest ('hitchhiker') and monitoring of the pest in countries where it is known to be present.

Risk Records for this Pest