Phlebiopsis gigantea strain VRA 1835

Phlebiopsis gigantea strain VRA 1835 is a specialized biological fungicide derived from a naturally occurring fungus. It is categorized as a microbial biological control agent specifically formulated to protect trees from parasitic infections that compromise wood health in managed forests.

The primary mechanism of action relies on niche exclusion. When applied to fresh tree stumps, the fungus spores germinate rapidly and colonize the wood surface. By occupying the available space and consuming nutrients, it physically blocks the entry of the pathogenic fungus Heterobasidion annosum, which causes root rot, thus preventing the disease from spreading through root grafting.

This agent is primarily used in forestry on conifer species, such as pines and spruces. It serves as an essential tool in integrated pest management programs, especially in areas where harvesting operations have occurred, as cut stumps represent the primary entry point for root decay pathogens.

Application instructions require the suspension to be applied immediately to the freshly cut surface of the stump. The effectiveness of the treatment is highly dependent on the thoroughness of the application, ensuring that the entire cross-section of the wood is covered to prevent any gaps for pathogens to colonize.

• Environmentally friendly biological control.
• Prevents the spread of Heterobasidion species.
• Safe for use in sustainable forest management.
• Effective competitive exclusion properties.

Safety precautions for handling Phlebiopsis gigantea include using standard protective equipment to prevent inhalation of spores or skin contact. Although it is a non-toxic beneficial fungus, individuals with underlying health conditions or respiratory sensitivities should follow proper hygiene protocols during the preparation and application of the biological suspension.