UK Risk Register Details for Spodoptera exempta

This record was last updated on 15/05/2020

Common Names

  • African armyworm
  • Armyworm, African
  • Armyworm, true
  • Mystery armyworm
  • Nutgrass armyworm

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
This section is currently being developed as part of the next phase of the Risk Register.

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 5
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] 5
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
United Kingdom Absent
North America
United States Present
Australia Present
Papua New Guinea Present
Angola Present
Benin Present
Botswana Present
Burkina Faso Present
Burundi Present
Congo (Brazzaville) Present
Congo (Democratic Rep.) Present
Cote d'Ivoire Present
Egypt Present
Ethiopia Present
Ghana Present
Kenya Present
Madagascar Present
Malawi Present
Mali Present
Mayotte Present
Mozambique Present
Namibia Present
Niger Present
Nigeria Present
Rwanda Present
Senegal Present
Sierra Leone Present
Somalia Present
South Africa Present
Sudan Present
Tanzania Present
Togo Present
Uganda Present
Zambia Present
Zimbabwe Present
India Present
Indonesia Present
Malaysia Present
Myanmar Present
Philippines Present
Saudi Arabia Present
Singapore Present
Sri Lanka Present
Vietnam Present
Yemen Present

Type of Pest

  • Insect (Lepidoptera)

Host or Industry at Risk

  • show / hide


Major Hosts

  • Avena sativa L.
  • Eragrostis tef (Zucc.) Trotter
  • Gramineae Adans., Nom. Cons.
  • Hordeum vulgare L. em. Lam.
  • Oryza sativa L.
  • Panicum dichotomiflorum (L.) Michx.
  • Panicum miliaceum L.
  • Saccharum officinarum L.
  • Sorghum vulgare Pers.
  • Zea mays 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


Statutory action on findings on plants for planting. Review regulatory status of ornamental grasses.

General Comments

Unregulated moth pest that could potentially be damaging to cereals and grasses if introduced but no interceptions or outbreaks anywhere in Europe so unlikely to propose a significant threat at the moment.

Risk Records for this Pest