Nectria fuckeliana
Nectria fuckeliana
The fungus is a spruce bark canker pathogen. Long-lasting necrosis induces formation of permanent concentric circles of callus tissue around the necrotic bark and cambium. Even though an infected tree may reach a high age, its wood value is degraded and trees sometimes break in the canker. The infection gateways are injuries of various origin.
Red bumps on the bark of branches.
Tree Species: Spruce
Part of a plant- attacked: Branch
Pest significance: Harmful
Pest Category: Fungi
Invasive Species: No
Present in EU: Yes
Pest group: Fungi
Affected part of wood: Heartwood, Sapwood
Depth of damages: More than 5 cm depth, Under bark only, Up to 0,5 cm depth, Up to 2 cm depth, Up to 5 cm depth
The extent of damage: Whole trunk
Prevalence in Europe: Common
Damaged products: Firewood, Fresh timber logs (water still in the sapwood), Furniture, Lumber, boards and prisms, Wooden house constructions
Roundwood size: Branches and twigs, Diameter up to 10 cm
Wood discoloration: Yes
Similar pests
Diatrype disciformis
Diatrype stigma
