UK Risk Register Details for Candidatus Phytoplasma solani

Common Names

  • Black wood of grapevine
  • Female sterility of tobacco
  • Fruit woodiness of tomato
  • Maize Redness
  • Mal azul of tomato
  • Metabolbur
  • Metastolbur
  • Parastolbur
  • Purple top of potato
  • Stolbur of potato
  • Stolbur of tobacco
  • Stolbur of tomato

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] 3
Spread [1 - 5] 2
Impact [1 - 5] 4
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 12
UK Relative Risk Rating [1 - 125] 60

Current Mitigations

  • show / hide

Key mitigation for pest

EU regulated pest



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 2
Impact [1 - 5] 4
Value at Risk [1 - 5] 5
Likelihood x Impact [1 - 25] 12
UK Relative Risk Rating [1 - 125] 60

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country Status Notes
Europe Present
Albania Present
Austria Present
Bosnia-Herzegovina Present
Belgium Present
Bulgaria Present
Switzerland Present
Czech Republic Present
Germany Present
Spain Present
France Present
United Kingdom Absent
Greece Present
Croatia Present
Hungary Present
Italy Present
Moldova Present
Montenegro Present
Macedonia Present
Poland Present
Serbia Present
Russia Present
Slovenia Present
Slovakia Present
Turkey Present
Ukraine Present
South America Present
Chile Present
Africa Present
Niger Present
Asia Present
Armenia Present
Azerbaijan Present
China Present
Israel Present
India Present
Iran Present
Kyrgyzstan Present
Lebanon Present
Saudi Arabia Present
Tajikistan Present
Uzbekistan Present

Type of Pest

  • Phytoplasma

Host or Industry at Risk

  • show / hide

Solanum tuberosum, Solanum lycopersicum

Major Hosts

  • Convolvulus arvensis Linnaeus
  • Helianthus annuus L.
  • Solanum lycopersicum L.
  • Phaseolus vulgaris L.
  • Prunus avium ssp./var. avium L.
  • Prunus cerasus L.
  • Solanum tuberosum L.
  • Vitis vinifera ssp. vinifera L.
  • Zea mays L.
  • Solanaceae (family)

Threats to Protected Cultivation

  • Both protected crops and outdoor production

Forest Tree Pests and Pathogens

Further Information

PRA Availability

UK (2014)

EU and EPPO Listing


Actions Indicated

  • show / hide


Statutory action against findings. Review of EU legislation.

General Comments

Phytoplasma which potentially affects a wide host range, determined by the feeding behaviour of vectors. First UK outbreak in 2014, on strawberry, a host not specifically regulated in EU legislation. This legislation should be reviewed to take account of this and other developments.

Risk Records for this Pest