Monitoring of ‘Candidatus Phytoplasma solani’ and “flavescence dorée” phytoplasma in south regions of the Russian Federation

Phytoplasma disease “Bois noir” in Crimea: diagnosis of the pathogen

“…In nature the BN is transferred to grapes from field bindweed (Convolvulus arvensis L.), hedge bindweed (Calystegia sepium (L.) R.BR. ), greater nettle (Urtica dioica L.) or planting material infected with planthoppers Hyalesthes obsoletus Sign., Reptalus panzeri Löw and others that are distrubuted in all viticultural areas around the world [2][3][4][5][6][7][8][9].…”

“…Stolbur is a dangerous disease of tomatoes and other crops of the Solanaceae family known since the 1930s in the South of Russia, but it has never been registered on grapevine cultivars before. However, since the second decade of the XXI century, grapevine Bois Noir Phytoplasma has become a real danger to the vineyards of Russia [3,4,10]. The reason of its distribution may be the introduced planting material, since the pathogen was first-ever discovered in such material in Crimea [3].…”

“…However, since the second decade of the XXI century, grapevine Bois Noir Phytoplasma has become a real danger to the vineyards of Russia [3,4,10]. The reason of its distribution may be the introduced planting material, since the pathogen was first-ever discovered in such material in Crimea [3]. Therefore, it is so important to conduct a detailed study of phytoplasma genotypes peculiar for the regional flora and the corresponding local vectors.…”