Boosting calcium to fight disease in wine grapes

Calcium isn’t just a structural nutrient - it’s a frontline defender. It strengthens cell walls, helping vines grow with confidence and stability. But its real value shows when pressure hits.

Grape skin cracking?

Calcium keeps cells tight and elastic, reducing split risk - especially during rapid berry growth or after rain.

Pathogens like Peronospora (downy mildew) and Botrytis (grey mould) thrive on weak tissue. Calcium makes it harder for them to break in. It reinforces the outer layers and supports the plant’s immune response, so infections struggle to take hold.

The result?

Healthier vines. Cleaner bunches. And fewer losses to disease or disorder.