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Nectria fuckeliana

Nectria fuckeliana

Description

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.

Symptom

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