UK Risk Register Details for Plasmopara halstedii

Common Names

  • Downy mildew of sunflower

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest is introduced

Pathway Assessed for Entry to UK

  • show / hide
  • Seeds

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

Current Mitigations

  • show / hide

Key mitigation for pest

EU regulated pest



Industry Scheme

Contingency Plan



Mitigated Risks

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

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country Status Notes
Europe Present
Albania Present
Austria Present
Bulgaria Present
Switzerland Present
Czech Republic Present
Germany Present
Estonia Present
Spain Present
France Present
United Kingdom Absent
Greece Present
Croatia Present
Hungary Present
Italy Present
Moldova Present
Netherlands Present
Portugal Present
Romania Present
Serbia Present
Russia Present
Slovakia Present
Turkey Present
Ukraine Present
North America
Canada Present
Dominican Republic Present
United States Present
South America
Argentina Present
Brazil Present
Chile Present
Paraguay Present
Uruguay Present
Australia Present
Ethiopia Present
Kenya Present
Morocco Present
Uganda Present
South Africa Present
Zimbabwe Present
Azerbaijan Present
China Present
Georgia Present
Israel Present
India Present
Iraq Present
Iran Present
Japan Present
Kazakhstan Present
Myanmar Present
Pakistan Present

Type of Pest

  • Oomycete

Host or Industry at Risk

  • show / hide

Helianthus annuus

Major Hosts

  • Helianthus annuus L.
  • Asteraceae (family)

Threats to Protected Cultivation

Forest Tree Pests and Pathogens

Further Information

PRA Availability

PRA not available

EU and EPPO Listing


Actions Indicated

  • show / hide


Statutory action against findings. Survey to follow up UK outbreak.

General Comments

Sunflowers could be a more important crop in UK in future, consider some targetted survey and developing European risk assessment.

Risk Records for this Pest