Grapevine Yellows Diseases

Red grapevine varieties, such as Pinot Noir shown here, develop a characteristic red discoloration of the leaves when affected by grapevine yellows diseases.
Red grapevine varieties, such as Pinot Noir shown here, develop a characteristic red discoloration of the leaves when affected by grapevine yellows diseases.

Grapevine yellows diseases comprise Flavescence dorée (FD) and Bois noir (BN), two of the most important phytoplasma-associated diseases affecting grapevine production.

Within the framework of the research project „Flavescence dorée“, investigations focus on the current infection status, the role of asymptomatic infections, potential pathways of introduction through planting material, and the distribution of different phytoplasma strains. A further objective is the development of innovative monitoring and early-warning systems, the identification of alternative vectors, and the application of modern molecular diagnostic methods for phytoplasma detection.

The monitoring of grapevine yellows diseases aims to assess the phytosanitary situation in South Tyrol, document the spatial distribution of infection foci, and provide a scientific basis for targeted control measures. Since 2026, this monitoring has been carried out by the Laimburg Research Centre. These activities are conducted in close collaboration with the agricultural advisory services and the competent authorities of the Autonomous Province of Bozen-Bolzano to ensure the effective coordination of research, monitoring, and phytosanitary management activities.

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