Mycoparasitism is the primary mode of action of Pythium oligandrum (PO). PO parasites pathogens and utilizes the extracted nutrients for its growth and multiplication. PO also induces plant resistance and promotes growth through a biostimulation effect.
Yes, Polyversum is OMRI and FIBL certified.
Biomass of Pythium oligandrum peaks 3–5 days after application and gradually declines over 14 days.
Spores of Pythium oligandrum are activated by mixing the Polyversum in water. PO may form spores in soil is negligible amounts.
Yes, effective against certain bacteria via plant resistance induction and excellent against Pythium-related diseases.
Optimal application temperature is 20–30 °C, but PO can grow between 0–40 °C. Is it recommended to apply in early morning or late afternoon. If the day temperatures exceed 40°C PO stops growing and resumes its growth at night, when temperatures drop to the optimal level. PO can grow in the soil even during air temperature over 40°C as the soil temperature always remains lower.
Polyversum does not multiply in water, and applications should occur within 24 hours of mixing. Polyversum multiplies only upon consuming the target pathogen or organic debris
Pre-harvest interval is 0, and no visible residues remain when mixed correctly in the sufficient amount of water.
For root rots Polyversum can be applied as a seed/seedling treatment followed by drip irrigation in 14 day intervals with dosage recommendation based on the local registration. Polyversum can be applied as a foliar spray in greenhouses for the treatment of Botrytis, Phytophtora and Sclerotinia. The earlier the application the bigger the benefit.
Yes, Polyversum is effective when used through fertigation; recommended rates are 100–300 g/ha in 14 day intervals depending on pathogen pressure.
Download: Application-rates-for-berry-crops.pdf
Dry or wet coating at 0.1–1 kg/t for cereals/soy/sugar beet/potatoes, 5 g/kg for vegetables; apply as a sole fungicide. Adjuvants like Silwet can be used but are not essential.
Most fertilizers compatible; avoid mixing with synthetic fungicides targeting oomycetes and other biological fungicides. Please contact the Biogama for a full compatibility list. Polyversum has a limited phytotoxicity, proper sprayer maintenance is needed to prevent clogging.
Use maximum 50 mesh filter when applying Polyversum.
We have no evidence of such characteristics.
Yes, Polyversum has a superior efficacy against Verticilium.
