Survey and molecular detection of Bois noir in vineyards of the Czech Republic– Short communication

Abstract

Stolbur phytoplasma is an important pathogen associated with the Bois noir (BN) disease of grapevines. In the Moravia wine region, plants exhibiting BN-symptoms were observed in 14 localities, covering all four of the wine sub-regions. On other hand in the Bohemia wine region, symptomatic plants occurrence was only sporadic. All of the stolbur phytoplasma isolates were ascribable to the 16SrXII-A subgroup and the tuf-b type. The loss of grape clusters reached 50%, comparing the fully affected grapevine plants with the healthy ones.