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UK Risk Register Details for 'Candidatus Phytoplasma prunorum'

This record was last updated on 08/01/2021

Common Names

  • Chlorotic leafroll of apricot
  • Chlorotic leafroll of nectarine
  • Chlorotic leafroll of peach
  • Decline of Japanese plum
  • Decline of peach
  • Dieback of apricot
  • European stone fruit yellows
  • European yellows of peach
  • Italian rosette of peach
  • Leptonecrosis of plum
  • MoliŠres disease of cherry
  • Vein clearing of peach
  • Vein enlargement of peach

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest spreads to maximum extent

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] 4
Impact [1 - 5] 5
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 20
UK Relative Risk Rating [1 - 125] 60

Current Mitigations

  • show / hide

Key mitigation for pest

Regulated quarantine pest (Great Britain, Northern Ireland may differ)



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 4
Impact [1 - 5] 5
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 10
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
Austria Present
Belgium Present
Bulgaria Present
Czech Republic Present
Germany Present
Greece Present
Hungary Present
Italy Present
Romania Present
Slovenia Present
Albania Present
Belarus Present
Bosnia-Herzegovina Present
Poland Present
Serbia Present
Slovakia Present
Switzerland Present
Turkey Present
Spain Present
United Kingdom Present (Limited)
Egypt Present
Tunisia Present
Azerbaijan Present

Type of Pest

  • Phytoplasma

Host or Industry at Risk

  • show / hide


Major Hosts

  • Convolvulus arvensis Linnaeus
  • Cynodon dactylon (L.) Pers.
  • Prunus L.
  • Prunus armeniaca L.
  • Prunus avium ssp./var. avium L.
  • Prunus cerasifera Ehrh.
  • Prunus cerasus L.
  • Prunus domestica ssp. domestica L.
  • Prunus dulcis (Mill.) D.A.Webb
  • Prunus mahaleb L.
  • Prunus persica Batsch
  • Prunus salicina Lindl.
  • Prunus spinosa L.

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

Further Information

PRA Availability

UK (2003)

Regulation and EPPO listing

  • show / hide

Regulated quarantine pest (Great Britain, Northern Ireland may differ)

Actions Indicated

  • show / hide


Statutory action against interceptions and outbreaks

General Comments

Causal agent of European stone fruit yellows disease present at one site in England where control is ongoing.

Further Information


  • show / hide

Key uncertainty for pest

Distribution and migratory behaviour of the vector in the UK


Current distribution






UK distribution