Introduction: The Copper That Withstood Time
For more than a century, Bordeaux copper has remained a benchmark in crop protection. From its first appearance in France until today, it continues to be an irreplaceable ally for growers against fungal and bacterial diseases.
In the era of sustainable agriculture, its role remains fundamental — not only as an effective fungicide, but also as an example of technological evolution built on long-term experience.
What Is Bordeaux Mixture and What Does “Bordeaux Copper” Mean?
Bordeaux mixture is a combination of copper sulfate (CuSO₄) and calcium hydroxide (Ca(OH)₂) — commonly known as hydrated lime — that forms an insoluble copper salt.
It is applied to plants, forming a thin protective film on the plant surface, preventing the establishment and spread of pathogens.
The general term “Bordeaux copper” is now used to describe these formulations, which consist of this specific insoluble copper salt and include both traditional formulations (e.g. wettable powder) and modern liquid forms.
How Bordeaux Copper Works and Why Liquid Formulations Are the Future
The action of Bordeaux copper against pathogens is preventive:
- It creates a protective film on the plant surface.
- It gradually releases copper ions (Cu²⁺), which destroy the pathogen cells and inhibit spore germination.
- It strengthens plant tissues, preventing pathogen entry through wounds caused by frost, hail, pruning, or mechanical damage.
The use of traditional Bordeaux formulations, such as powders, presents several limitations, including: uneven coverage on the plant surface, instability of the spray solution, constant agitation requirement, and sedimentation in the spray tank.
Modern liquid formulations, on the other hand, offer:
✅ Easy preparation of the spray mixture
✅ High suspension stability of copper particles without sedimentation in the tank
✅ Uniform coverage of the plant surface and consistent efficacy
✅ Strong leaf adhesion and rainfastness
✅ Reduced copper residues in the environment
Bordelesa® 20 SC: The Evolution of Bordeaux Copper by Agrology
Responding to these challenges, Agrology developed Bordelesa® 20 SC — the innovative liquid Bordeaux copper formulation, produced in Greece and representing 20 years of proven expertise.
Bordelesa® 20 SC, a Suspension Concentrate (SC), offers significant advantages over traditional formulations:
- Unique stability and uniformity without sedimentation
- Ideal particle size and improved coverage
- Rainfastness and longer residual activity
- Safer and easier application
👉 Learn more about Bordelesa® 20 SC
The Role of Bordeaux Copper in Sustainable Agriculture
The use of copper remains a key tool in both organic and integrated crop protection programs.
Agrology’s innovative formulations, such as Bordelesa® 20 SC, provide high efficacy while aligning productivity with sustainability.
Conclusion: The Future of Sustainable Agriculture
Bordeaux copper is not just a traditional plant protection product — it is a living link between history and innovation.
With Bordelesa® 20 SC, Agrology has transformed a classic formulation into a modern technological achievement: the only liquid Bordeaux copper in the world, with a guaranteed 20% metallic copper content, 100% Greek-made, celebrating 20 years of proven reliability and presence in both the Greek and international markets.