Our use of Cookies

This site uses only cookiesstrictly necessaryto ensure the site works correctly.

Please read about how we use cookies.

Hide this message

Strictly necessary and non-essential cookies

Accept all cookies

Accept necessary cookies only

Set Cookie Preferences

By clicking accept all cookies, you agree to our use of cookies and to our cookie policy.

We use third-party cookies on this site.

You have accepted necessary cookies only

You can change your cookie settings at any time

Hide this message

UK Risk Register Details for Diaporthe amygdali

Please note: there are high levels of uncertainty associated with the risk scores for this pest.

This record was last updated on 14/06/2022

Common Names

  • Canker of almond
  • Twig canker of peach

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
  • Plants for planting (except seeds bulbs and tubers)

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 2
Impact [1 - 5] 2
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 6
UK Relative Risk Rating [1 - 125] 18

Current Mitigations

  • show / hide

Key mitigation for pest



Industry Scheme

Contingency Plan



Mitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 2
Impact [1 - 5] 2
Value at Risk [1 - 5] 3
Likelihood x Impact [1 - 25] 6
UK Relative Risk Rating [1 - 125] 18

Proposed Actions

Proposed Actions



Management By Industry

Targeted Survey


Contingency Plan



Distribution and Pest Details


Country / Territory Status Notes
United Kingdom Absent
France Present
Greece Present
Hungary Present
Italy Present
Portugal Present
Spain Present
Türkiye Present
North America
United States Present
South America
Argentina Present
Uruguay Present
Australia Present
South Africa Present
Tunisia Present
China Present
Iran Present
Japan Present
Thailand Present

Type of Pest

  • Fungus

Host or Industry at Risk

  • show / hide

Blueberry growers and vineyards

Major Hosts

  • Camellia L.
  • Corylus avellana Linnaeus
  • Juglans regia L.
  • Malus domestica Borkhausen
  • Pieris japonica (Thunb.) D.Don Ex G.Don
  • Prunus L.
  • Prunus armeniaca L.
  • Prunus domestica ssp. domestica L.
  • Prunus dulcis (Mill.) D.A.Webb
  • Prunus persica Batsch
  • Prunus salicina Lindl.
  • Pyrus pyrifolia (Burm.F.) Nakai
  • Vaccinium corymbosum L.
  • Vaccinium vitis-idaea L.
  • Vitis vinifera ssp. sylvestris L.

Threats to Protected Cultivation

  • N/A

Forest Tree Pests and Pathogens

  • N/A

Further Information

PRA Availability

PRA not available

Regulation and EPPO listing

  • show / hide

Not currently listed

Actions Indicated

  • show / hide


No statutory action

General Comments

Polyphagous widespread pathogen with reports of damage to almonds, blueberries, grapevines and peaches/nectarines. Damage to blueberries and grapevines are not well documented and impacts are reported from areas with warmer climates. Based on current information unlikely to pose significant risk to UK. A watching brief will be maintained, in case new evidence emerges.

Further Information


  • show / hide

Key uncertainty for pest

Biology and taxonomy of the pest is unclear and there are less impacts on UK crops of concern than others such as peaches and almonds


Current distribution






UK distribution

Risk Records for this Pest