Plant resilience and physiological modifications induced by curettage of Esca-diseased grapevines

The re-emergence of Grapevine Trunk Diseases (GTDs), mainly Esca, has been observed in most the world’s vineyards during last two decades. Development necrosis grapevine wood, especially white-rot, is typically associated with Esca-diseased plants. One different methods being used attempts to eradicate GTDs curettage. This old cultural practice, which consists surgically removing necrotic specifically retaining only non-necrotic tissue grapevine, some European (Spain, France, Italy, Portugal), and increasingly reintroduced since 10 years ago France. We, therefore, wanted study effect curettage on vigour, fertility berry quality, year after plant recovery. Our synthetizes a 3-year experiment cv. Sauvignon blanc grapevines curetted commercial plot Bordeaux region. Asymptomatic control were compared without (with typical foliar symptoms), (without symptoms). Even if recovered lower vigour than plants, their grape quality was comparable, unlike for grapevines. practice proved particularly effective helping Esca-symptomatic recover asymptomatic treatment. Over time, induces resilience grapevines, allowing them recuperate full physiological functioning, thereby compensating Esca’s detrimental impact quality.