Flavescence Dorée and Grapevine Susceptibility: From Host-Pathogen Interaction to Cultivar Categorization

Area of Science:

• Plant Pathology
• Viticulture
• Agricultural Entomology

Background:

• Flavescence dorée (FD) is a significant economic threat to European vineyards.
• The disease impacts grapevine health and yield, necessitating effective management strategies.

Purpose of the Study:

• To review and categorize grapevine cultivar susceptibility and tolerance to Flavescence dorée.
• To assess the potential for spontaneous recovery in FD-affected vines across different cultivars.

Main Methods:

• Literature review of documented FD susceptibility and tolerance in international and local grapevine cultivars.
• Development of a broad categorization for cultivar responses to FD, including recovery aptitude.

Main Results:

• Varied susceptibility and recovery capacities among grapevine cultivars were documented.
• A categorization highlights cultivars with higher or lower susceptibility and recovery potential.

Conclusions:

• Cultivar-specific responses to FD are critical for risk assessment and epidemic dynamics.
• Further research on geographic spread and pathogen-host interactions across cultivars is needed for comprehensive FD management.