OPSeed75
Vitis vinifera L.
Polyphenols, naturally present in plants, help protect them from external threats. Harnessing this potential, grape seeds extract (Vitis vinifera), rich in polyphenols, has been recognized by the European Union since January 2025 as a basic substance. It offers a natural alternative for controlling fungal diseases.
The mode of action of polyphenolic compounds is well known and documented: acting by contact and on multiple sites, they disrupt pathogen sporulation and cell growth, and weaken their membranes. The observed effect of OPSeed75 aligns with this mechanism.
The effectiveness of OPSeed75 relies on a high content (75%) of oligo-proanthocyanidins, which is essential for its fungistatic action and compliance with strict regulatory requirements for its use as a basic substance.
The mode of action of polyphenolic compounds is well known and documented: acting by contact and on multiple sites, they disrupt pathogen sporulation and cell growth, and weaken their membranes. The observed effect of OPSeed75 aligns with this mechanism.
The effectiveness of OPSeed75 relies on a high content (75%) of oligo-proanthocyanidins, which is essential for its fungistatic action and compliance with strict regulatory requirements for its use as a basic substance.
Its fungicidal effect has been demonstrated against the major crop diseases: grapevine downy mildew (Plasmopara viticola), apple scab (Venturia inaequalis), potato late blight (Phytophthora infestans), and lettuce downy mildew (Peronospora sp. & Bremia lactucae).
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![Logo OP'Seed75]()
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Guarantee
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Technical description of OPSeed75
Strengths and benefits
- 100% natural solution sustainable and effective against fungal diseases
- Approved basic substance compatible with integrated disease management in compliance with EU Regulation No 1107/2009
- Confirmed fungicidal effect limiting pathogen development
- Compatibility and use in tank mix with other phytosanitary solutions
- Documented multi-site activity offering potential for integration into resistance management programs
- Controlled sourcing ensuring quality and polyphenol content of grape seeds extract
- Manufacturing ensuring traceability and quality control
- Suitable for professionals and home & garden markets
Uses and application period
- Application pre- or post-flowering
- Can be used alone or in a treatment programme alternating with other active substances
Application recommendations
- Grapevine (against grapevine downy mildew – Plasmopara viticola)
- Apple (against apple scab – Venturia inaequalis)
- Potato (against potato late blight – Phytophthora infestans)
- Lettuce (against lettuce downy mildew – Bremia lactucae et Peronospora sp.)
Technical Characteristics
- Composition: grape seeds extract (Vitis vinifera L.) with an oligo-proanthocyanidins (OPC) content >75%
- Formulation: wettable powder (WP)
- Packaging: 5kg bucket
- Storage: store in the original container away from frost, light and moisture
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