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UK Risk Register Details for Tetraneura nigriabdominalis

Please note: there are high levels of uncertainty associated with the risk scores for this pest.

This record was last updated on 02/03/2021

Common Names

  • Rice root aphid, black

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
  • Plants for planting (except seeds bulbs and tubers)

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 4
Spread [1 - 5] 3
Impact [1 - 5] 2
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 8
UK Relative Risk Rating [1 - 125] 24

Current Mitigations

  • show / hide

Key mitigation for pest



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 4
Spread [1 - 5] 3
Impact [1 - 5] 2
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 8
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
Bulgaria Present
Czech Republic Present
France Present
Greece Present
Italy Present
Netherlands Present
Poland Present
Portugal Present
Russia Present
Slovakia Present
Spain Present
Türkiye Present
United Kingdom Absent
North America
United States Present
South America
Argentina Present
Brazil Present
Colombia Present
Australia Present
Fiji Present
New Zealand Present
Tonga Present
Burundi Present
Cameroon Present
Egypt Present
Ghana Present
Guinea-Bissau Present
Kenya Present
Nigeria Present
Sao Tome and Principe Present
Sierra Leone Present
South Africa Present
Tanzania Present
Uganda Present
Zambia Present
Zimbabwe Present
Bangladesh Present
China Present
Hong Kong Present
India Present
Indonesia Present
Iran Present
Japan Present
Laos Present
Malaysia Present
Nepal Present
Pakistan Present
Philippines Present
South Korea Present
Sri Lanka Present
Taiwan Present
Central America
Cuba Present
Jamaica Present

Type of Pest

  • Insect (Hemiptera)

Host or Industry at Risk

  • show / hide


Major Hosts

  • Allium L.
  • Glycine max (L.) Merr.
  • Gramineae Adans., Nom. Cons.
  • Oryza L.
  • Sorghum Moench
  • Triticum L.
  • Ulmus L.
  • Zea mays L.

Threats to Protected Cultivation

  • N/A

Forest Tree Pests and Pathogens

  • N/A

Further Information

PRA Availability

PRA not available

Regulation and EPPO listing

  • show / hide

Not currently listed

Actions Indicated

  • show / hide


No statutory action.

General Comments

Aphid pest found worldwide including Europe, and which has been intercepted in the UK. Eggs are laid on Ulmus spp. hatching to form galls on leaves where the aphid develops before migrating to the secondary hosts of grasses, impacts are expected to be minimal.

Further Information


  • show / hide

Key uncertainty for pest

Climatic suitability, host range, impact.


Current distribution






UK distribution

Risk Records for this Pest