Phytopathogenic Mollicutes

SCOPUS
  • Year: 2023
  • Volume: 13
  • Issue: 1

Origin of isolated cases of “flavescence doree” in North-East of France: Search for reservoir plants and insect vectors in semi-natural habitats near vineyards

  • Author:
  • Arthur Auriol1,*, Pascal Salar1, Sandra Pedemay1, Thierry Lusseau1, Delphine Desque1, Denis Lacaze1, Mathilde Bocquart1, Marielle Levillain1, Jean-Saïd Bey1, Pascale Pienne2, Marion Delame3, Bruno Doublet3, Isabelle Riou3, Celine Abidon4, Xavier Foissac1, Sylvie Malembic-Maher1
  • Total Page Count: 2
  • Page Number: 45 to 46

1Universite de Bordeaux, INRAE, Biologie du Fruit et Pathologie, UMR 1332, Villenave d'Ornon, France

2Comite Interprofessionnel du Vin de Champagne, Epernay, France

3Direction regionale de l'Alimentation de l'Agriculture et de la Forêt, Châlons-en-Champagne, France

4Institut Français de la Vigne - Region Grand Est, Colmar, France

Abstract

The origin of grapevine “flavescence doree” (FD) isolated cases detected in Champagne and Alsace was studied. Grapevines, woody plants and auchenorrhynchan insects were sampled in the environments of vineyards. The only perennial plants found infected by 16SrV-C phytoplasmas were alders. Scaphoideus titanus and the known alternative vectors Allygus spp. and Orientus ishidae were infected by FD phytoplasma, map M38 genotype. They are good candidates for the transfer of M38 from alders to grapevine. Lamprotettix nitidulus was also infected by the M38 genotype in Alsace. The origin of M50 and M50 variant detected in some vineyards remains unknown since both plants and insects tested were not infected by these FD phytoplasma genotypes.

Keywords

Epidemiology, Riparian habitat, Vitis vinifera, Auchenorrhyncha