Antrodiella serpula

Antrodiella serpula is a species of wood-decaying basidiomycete fungus belonging to the Polyporaceae family. This fungus acts as a primary decomposer that targets the structural components of wood, eventually leading to the development of white rot in various deciduous tree species.

The host range of this fungus primarily includes hardwood trees, particularly those that are already stressed or in a state of physiological decline. It thrives on trunks and large branches, gradually penetrating the heartwood and sapwood, which compromises the vitality of the infected plant.

Symptoms of the infection are characterized by the emergence of fruit bodies on the surface of the bark. These appear as tough, cream-colored to yellowish crust-like structures that may grow together in a shelf-like formation. Internally, the affected wood becomes soft, stringy, and light in color, losing its original strength and structural integrity.

The spread of Antrodiella serpula is highly dependent on environmental factors, specifically high humidity levels and favorable ambient temperatures. The fungus releases spores that are easily transported by wind, rain, or insects to open wounds, cracks, or pruning sites on susceptible trees.

The damage caused by this pathogen is significant in both forestry and urban horticulture. As the fungus consumes the lignin, the infected wood becomes brittle, posing a high risk of branch failure or total tree collapse, which creates dangerous conditions for surrounding vegetation and property.

Management and prevention strategies focus on maintaining tree vigor and minimizing potential entry points for fungal spores. This involves regular sanitary pruning, prompt treatment of mechanical wounds with appropriate sealing agents, and avoiding unnecessary damage to the trunks during maintenance activities.