Trichoderma polysporum strain IMI 206039

Trichoderma polysporum strain IMI 206039 belongs to the category of biological fungicides based on antagonistic soil fungi. Its mode of action is primarily based on direct parasitism on the hyphae of pathogenic microorganisms.

The fungus actively secretes specific enzymes, including chitinases and cellulases, which degrade the cell walls of phytopathogens, effectively depriving them of their ability to develop and propagate.

Beyond direct destruction, strain IMI 206039 effectively competes with harmful fungi for substrate and space, rapidly colonizing the plant root zone and the surface of seeds.

During its life cycle, Trichoderma polysporum synthesizes natural antibiotic substances that suppress the development of various root and crown rot pathogens.

The biological activity of this strain contributes to the stimulation of the plant's immune system, increasing its natural resistance to various types of stress and infectious pressures.

This strain is used as an effective plant protection agent for a wide range of agricultural crops, including cereals, vegetables, fruit and berry crops, and ornamental plants.

The primary targets for treatment are soil-borne and seed-borne disease pathogens, particularly species within the Fusarium, Pythium, Rhizoctonia, and Botrytis genera.

Products based on IMI 206039 demonstrate high efficacy in controlling grey mold, fusarium wilt, damping-off, and various types of mildew infections.

The use of this strain is most appropriate in greenhouse conditions, where high humidity facilitates the rapid spread of fungal infections, as well as in seedling production.

• Fusarium wilts
• Pythium root rots
• Rhizoctonia
• Grey mold

Application timing depends on the plant growth stage and the phytosanitary condition of the field. Treatment is usually conducted via seed dressing or by applying the product into the soil during seedling transplantation.

Dosage rates for the product are calculated based on the titer of viable spores in a specific commercial formulation and the type of agricultural crop being cultivated.

To achieve maximum effect, uniform distribution of the biological agent within the root-inhabiting soil layer is recommended to ensure long-term protection against soil pathogens.

When using as a drench solution, it is essential to monitor soil temperature, as the activity of Trichoderma depends directly on soil warmth and moisture levels.

The frequency of application is determined by agronomists based on the severity of crop infection and weather conditions that influence the reproduction rate of the fungal antagonist.

A key limitation is the prohibition on mixing the product with chemical fungicides, as they may suppress the activity of the live Trichoderma polysporum mycelium.

Exposure of the working solution to direct sunlight must be avoided, as ultraviolet radiation negatively affects the viability of fungal spores prior to soil application.

The use of the product requires strict adherence to temperature guidelines, as the efficacy of the biological agent drops sharply under extreme low or high temperature conditions.

An important condition is the absence of residual aggressive pesticides in the soil, which could inhibit the development of the beneficial microflora introduced with the biological product.

Storage of the working material should be maintained in a cool, dark place to prevent the premature loss of the strain's biological activity.