
Triple natural action that delivers results. Pythium oligandrum destroys harmful fungi, activates plant defenses, and stimulates growth for stronger, healthier crops.

Proven innovation that stands the test of time. Since 1997 we’ve commercialized bio-fungicides based on Pythium oligandrum, still the only company in the world doing so.

Confidence you can trust. Our products are supported by robust registration dossiers, patents, and multi-territory authorizations across the EU and beyond.

Ready when you are. Formulated for flexible use (foliar spray, seed treatment, post-harvest), with storage-stable oospores that mix easily and stay effective.

Proven in vineyards, fields, and greenhouses. Consistent results season after season.
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.