European canker

European canker

Photo by H.J. Larsen,

  • Economically damaging fungus worldwide that causes up to 60% yield loss
  • Reddish brown lesions develop on small branches, usually around leaf scar, spur or pruning wounds
  • Lesions develop into cankers that cause dieback of affected branches
  • Cankers can girdle trunks of young trees causing tree death
  • Rot may develop in trees or on fruit
  • Long distance dispersal likely through movement of infected (though often symptomless) fruit

High priority pest of: Apples and pears, Cherries

Scientific name: Neonectria ditissima
EPPRD Category:
Life Form: Fungus

Pest Documents

FS: fact sheet

CP: contingency plan

DP: diagnostic protocol