Thelephora anthocephala

Thelephora anthocephala is a species of basidiomycete fungus that acts as a pathogen or opportunistic saprotroph, often associated with root and collar decay in various woody plant species. In forestry and horticultural science, it is recognized for its ability to colonize the base of stems and root zones, particularly in moist environments.

This fungus typically impacts forest trees, ornamental shrubs, and occasionally nursery crops. While not as aggressive as primary root rot pathogens, its presence indicates an imbalance in soil health, often leading to secondary infections that further stress the host plant and compromise its long-term vitality.

The primary symptom of infection is the appearance of distinct, coral-like or fan-shaped fruiting bodies, typically brown or reddish-brown, sprouting from the soil near the base of the trunk. As the fungus develops, its mycelial network can cause localized necrosis of the bark and cambium, eventually restricting water and nutrient uptake.

Environmental conditions such as high soil humidity, poor drainage, and the presence of decomposing organic matter create ideal habitats for this fungus. Spores are dispersed through wind and water splashes, often colonizing plants through existing wounds or structural damage to the outer root tissues or lower stems.

Managing this condition requires a proactive approach to soil hygiene and plant stress management. Cultural practices, such as clearing debris from the root flare and improving soil aeration, are essential.

• Remove fruiting bodies manually
• Improve drainage in the root zone
• Avoid wounding the stem during maintenance
• Apply appropriate fungicides if necessary