• Pest spreads to maximum extent

• Plants for planting (except seeds bulbs and tubers)

• Plants for planting (except seeds bulbs and tubers)

× Likelihood For "Pest is Introduced" the lowest value of Entry or Establishment, as both are required for a successful introduction. For "Pest Spreads to Maximum Extent" this is an expert judgement on the likelihood of this occurrence. See Guidance Document for more Information Close Likelihood [1 - 5]				4
× Spread The rate at which a pest can expand, by natural dispersal only, within an area. See Guidance Document for more Information Close Spread [1 - 5]			3
× Impact The highest value from economic, environmental or social impacts. See Guidance Document for more Information Close Impact [1 - 5]			3
× Value at Risk The value of the hosts or industries at risk from this pest in the UK. See Guidance Document for more Information Close Value at Risk [1 - 5]			3
× Likelihood x Impact The likelihood multiplied by the impact, which shows the risk to the sector. See Guidance Document for more Information Close Likelihood x Impact [1 - 25]	12
× UK Relative Risk Rating Likelihood x Impact x Value at Risk. See Guidance Document for more Information Close UK Relative Risk Rating [1 - 125]	36

Key mitigation for pest

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

× Likelihood For "Pest is Introduced" the lowest value of Entry or Establishment, as both are required for a successful introduction. For "Pest Spreads to Maximum Extent" this is an expert judgement on the likelihood of this occurrence. See Guidance Document for more Information Close Likelihood [1 - 5]				4
× Spread The rate at which a pest can expand, by natural dispersal only, within an area. See Guidance Document for more Information Close Spread [1 - 5]			3
× Impact The highest value from economic, environmental or social impacts. See Guidance Document for more Information Close Impact [1 - 5]			3
× Value at Risk The value of the hosts or industries at risk from this pest in the UK. See Guidance Document for more Information Close Value at Risk [1 - 5]			3
× Likelihood x Impact The likelihood multiplied by the impact, which shows the risk to the sector. See Guidance Document for more Information Close Likelihood x Impact [1 - 25]	12
× UK Relative Risk Rating Likelihood x Impact x Value at Risk. See Guidance Document for more Information Close UK Relative Risk Rating [1 - 125]	36

Regulation

Deregulation

Management By Industry

Targeted Survey

PRA

Contingency Plan

Publicity

Research

Country / Territory			Status			Notes
Europe
	United Kingdom		Present (Limited)
	Austria		Present
	Hungary		Present
	Italy		Present
	Switzerland		Present
	Bulgaria		Present			Cryphonectria carpinicola only confirmed
	Serbia		Present			Cryphonectria carpinicola only confirmed
	Slovakia		Present			Cryphonectria carpinicola only confirmed
Asia
	Georgia		Present
	Japan		Present			Cryphonectria carpinicola only confirmed

• Fungus

Hornbeam

• Carpinus betulus L.

• N/A

• Broadleaved

PRA Availability

PRA not available

Cryphonectria carpinicola is on the EPPO Alert list

Action

No statutory action

General Comments

Cryphonectria carpinicola is a fungus only known to affect hornbeam. It is present in parts of Europe and was found for the first time in the UK in 2022. Impacts of C. carpinicola alone in the UK are uncertain, as there is conflicting information around its pathogenicity, but when it infects hornbeam in combination with a fungus which has long been established in the UK (Anthostoma decipiens), impacts are likely to be higher.

Key uncertainty for pest

Distribution within the UK

Climate

Current distribution

Hosts

Impact

Pathways

Regulation

Taxonomy

UK distribution