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Colpoma quercinum

Split gill

Description

It is predominantly a saprophytic to a weakly parasitic fungus that causes dying of young trees and side branches in the lower part of the trunk of older trees suffering mainly from a lack of light or nutrients. Thus, the fungus contributes on a large scale to so-called natural cleaning of oak trunks from branches. Spores of the asexual stage Clithris quercina are not able to infect host tissues. Sexual apothecia have a shape of small lengthwise openings and they are usually formed on completely dead branches and sprouts.

Symptom

Small lengthwise openings and they are usually formed on completely dead branches and sprouts.

Tree Species: Oak, Chestnut

Part of a plant- attacked: Branch

Pest significance: Less harmful

Pest Category: Fungi

Invasive Species: No

Present in EU: Yes