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Even today, copper is considered the most effective product for combating downy mildew in organic farming. However, it has a significant drawback: as a heavy metal, copper does not degrade. Its progressive accumulation in the soil is toxic to beneficial microorganisms and earthworms—creatures that are crucial for soil biodiversity and fertility.

For several years now, here at Gracciano della Seta, we have been experimenting with natural products that can, at least in part, replace copper:

- Wood distillate: A byproduct of wood processing, rich in tannins and polyphenols. Obtained through aqueous extraction using exclusively physical processes—without chemical reagents—it improves plant resistance to both biotic and abiotic stresses.

- Yeast-based products: These act as resistance inducers, simulating a fungal attack to "trick" the plant. The vine responds by activating its own defense mechanisms (producing natural protective molecules like hydrogen peroxide and stilbenes) to resist pathogens. They are completely harmless to the environment and leave no residue.

- Seaweed (Algae): A natural resource we have been using at Gracciano since 2016. They act as biostimulants and elicitors, improving the vine's health against diseases such as downy mildew and powdery mildew. While yeast focuses on resistance induction, seaweed offers a more comprehensive action: it not only activates defense genes but also helps the vine tolerate environmental stresses like drought or temperature fluctuations, improving water efficiency and photosynthetic capacity.

We experiment with different products with a single goal: to protect the environment where we live.

Ultimately, less copper in the soil means a healthier vine and a more authentic wine. Our quality starts here: from a balanced ecosystem that is reflected in the purity of what you pour into your glass.