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UK Risk Register Details for Trupanea wheeleri

This record was last updated on 05/12/2023

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest is introduced

Pathway Assessed for Entry to UK

  • show / hide
  • Cut flowers or branches

Common Pathways

  • show / hide
  • Cut flowers or branches

Risk Ratings and Current Mitigations

Unmitigated Risks

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

Current Mitigations

  • show / hide

Key mitigation for pest

Regulated quarantine pest (Northern Ireland)



Industry Scheme

Contingency Plan



Mitigated Risks

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

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

Type of Pest

  • Insect (Diptera)

Host or Industry at Risk

  • show / hide

Major Hosts

  • Achillea millefolium L.
  • Aster occidentalis (Nutt.) Torr. & Gray
  • Aster spinosus Benth.
  • Baccharis sarothroides A.Gray
  • Chrysopsis villosa (Pursh) Nutt.
  • Chrysothamnus nauseosus (Pallas) Britt.
  • Encelia farinosa Gray Ex Torr.
  • Haplopappus acradenius (Greene) Blake
  • Haplopappus ericoides (Less.) Hook. & Arn.
  • Hemizonia fasciculata Torr. & Gray
  • Solidago occidentalis Nutt./Torr. & Gray
  • Dieteria canescens (Pursh) Nuttall
  • Acourtia microcephala de Candolle
  • Haplopappus venetus (Kunth) S.F.Blake
  • Brickellia californica (Torrey & A. Gray) A. Gray
  • Psathyrotes ramosissima (Torrey) A. Gray
  • Brickellia oblongifolia Nuttall
  • Ericameria teretifolia Jepson
  • Ericameria cuneata var. cuneata
  • Ericameria pinifolia H.M. Hall
  • Ericameria brachylepis (A. Gray) H.M. Hall
  • Hazardia squarrosa var. grindelioides (De Candolle) W.D. Clark
  • Deinandra floribunda Davidson & Moxley
  • Acamptopappus shockleyi A. Gray
  • Baccharis plummerae A. Gray
  • Chaenactis artemisiifolia Nuttall
  • Ericameria parryi var. aspera (Greene) G.L. Nesom & G.I. Baird
  • Encelia virginensis A. Nelson
  • Erigeron aphanactis Greene
  • Eriophyllum confertiflorum (De Candolle) A. Gray
  • Hazardia detonsa Greene
  • Ericameria palmeri (A. Gray) H.M. Hall
  • Ericameria parishii var. parishii
  • Isocoma menziesii var. decumbens (Greene) G.L. Nesom
  • Helianthus gracilentus A. Gray
  • Lasthenia glabrata Lindley
  • Perityle emoryi Torrey
  • Packera cana (Hook.) W.A.Weber & A.Love
  • Ericameria linearifolia (DC.) Urbatsch & Wussow

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 (Northern Ireland)

Actions Indicated

  • show / hide


Statutory action in Northern Ireland. No statutory action in Great Britain.

General Comments

Fruit fly from North America which feeds on flower and seed heads of a range of hosts, mainly in the Asteraceae, though it apparently causes little damage. Considered to be of little phytosanitary risk to the UK.

Risk Records for this Pest