Copper nanoparticles for grapevine trunk disease control in Albariño vineyards

Copper nanoparticles applied via trunk injection and foliar sprays to manage grapevine trunk diseases in a 26-year-old Albariño vineyard in Galicia, Spain, as part of the EU-funded Winetwork project. The practice uses 15 mg/l Cu NPs at bud break and veraison, with additional foliar treatments combining nanoparticles and a porcine blood-derived elicitor. Conducted in a 1,200 plants/ha planting with R110 and 196-17 CL rootstocks, the method aims to reduce copper usage while maintaining efficacy. Trials, expected to conclude in two years, are part of a sustainable viticulture initiative in the Rías Baixas region.