Forest and wood pests electronic identification and monitoring system

Ganoderma australe

Ganoderma root and butt rot

The fruiting bodies are perennial, bracket-like, up to 50 cm wide and 20 cm thick. The surface is dark brown, grooved, waved and covered with bark reaching up to 3 mm in thickness. Edges of the fruiting bodies are round and white at the time of increment. Similarly, the pores on the bottom side of the fruiting bodies are white first, later they are ochre to reddish-brown. The ecosystem of the fungus is the urban environment. It infects living or dead broadleaves, mostly in parks and alleys. Besides, a common symptom is intense spotty white rot of roots and the trunk. Infected wood is covered with black pseudosclerosis lines. 

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Fruiting bodies on the trunk.

Tree Species: Oak, Maple, Lime, Horse Chestnut

Part of a plant- attacked: Tree trunk, Roots

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: Diameter 50+, Diameter from 10 up to 50 cm

Pest subcategory: Brown-rot, White-rot

 Ján Kollár

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