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
- Confirmed fungicidal effect, limiting pathogen development
- 100% natural solution
- Approved basic substance via Commission Implementing Regulation (EU) 2025/96 of 21 January 2025
- Food‑grade, suitable for organic agriculture( Regulation (EU) No 1165/2021) and compliant with Demeter certification standards
- Compatible for use alone or in tank mix with other phytosanitary solutions
- Suitable for professional users, home & garden markets and public sector
- Quality, traceability and polyphenol content, supported by more than 50 years of internal expertise in plant extraction, from sourcing to finished product, without subcontracting
In accordance with Article 23 of Regulation (EC) No 1107/2009, a basic substance is not primarily intended for plant protection purposes but is nevertheless useful for plant protection; it has no immediate or delayed harmful effects on human or animal health, no unacceptable effects on the environment, and is not marketed as a plant protection product.
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: highly dispersible wettable powder (WP)
- Packaging: 5 kg bucket / 200 kg bulk bag
- Storage: store in the original container, frost free, protected from light and moisture
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