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UK Risk Register Details for Chryseococcus arecae

Pest has been archived

This pest has been assessed for the Risk Register and is considered to pose a low risk to the UK. The information on this pest was correct as of 16/07/2020, but is no longer actively maintained. It will only be updated if new information is received which indicates the potential for a significant increase in risk to the UK.

This record was last updated on 16/07/2020

Common Names

  • Golden root mealybug

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest spreads to maximum extent

Pathway Assessed for Entry to UK

  • show / hide

Common Pathways

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

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 1
Impact [1 - 5] 2
Value at Risk [1 - 5] 4
Likelihood x Impact [1 - 25] 6
UK Relative Risk Rating [1 - 125] 24

Current Mitigations

  • show / hide

Key mitigation for pest



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 1
Impact [1 - 5] 2
Value at Risk [1 - 5] 4
Likelihood x Impact [1 - 25] 6
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
United Kingdom Present (Limited)
Australia Present (Limited)
New Zealand Present

Type of Pest

  • Insect (Hemiptera)

Host or Industry at Risk

  • show / hide


Major Hosts

  • Aethionema R.Br.
  • Androsace L.
  • Anthoxanthum odoratum L.
  • Aquilegia L.
  • Astilbe Buch.-Ham.
  • Cordyline Comm. Ex Juss.
  • Cortaderia Stapf
  • Cyathea dealbata (Forst.F.) Sw.
  • Dendrobium Sw.
  • Dianthus L.
  • Dianthus deltoides L.
  • Edraianthus (A.Dc.) Dc.
  • Elytrigia repens (Linnaeus) Nevski
  • Erica L.
  • Eucryphia Cav.
  • Gentiana L.
  • Meconopsis Vig.
  • Ozothamnus R.Br.
  • Philadelphus L.
  • Primula L.
  • Pulsatilla vulgaris Mill.
  • Raoulia Hook.F. Ex Raoul
  • Rhododendron L.
  • Rhopalostylis sapida (Soland. Ex Forst.) H.Wendl. & Drude
  • Rhopalostylis

Threats to Protected Cultivation

  • Both protected crops and outdoor production

Forest Tree Pests and Pathogens

Further Information

PRA Availability

PRA not available

Regulation and EPPO listing

  • show / hide

Not currently listed

Actions Indicated

  • show / hide


No statutory action against findings

General Comments

Polyphagous root-feeding mealybug endemic in New Zealand and now present in Scotland and northern England. Though most hosts suffer minor impacts, large populations can build up on some hosts such as Meconopsis and cause damage. Stakeholder groups may wish to continue monitoring developments, including any spread to the wider environment, e.g. heather.