Presence of grapevine bois noir phytoplasma in Croatia
Grapevine yellows diseases are reported from many viticultural regions of the world and phytoplasmas associated with these diseases belong to different groups [aster yellows, X-disease, elm yellows (e.g. grapevine flavescence dorée) and stolbur group (e.g. grapevine bois noir)]. In Croatia, symptoms of grapevine yellows have been observed in some regions. In 1998, phytoplasmas belonging to the stolbur group were reported. In autumn 1998, 28 samples were collected in vineyards from different regions in Croatia and tested (PCR, RFLP). Samples collected in eastern and north-western parts of Croatia presented symptoms; whereas those from Dalmatia and Istria showed no typical symptoms. Results demonstrated that bois noir phytoplasmas (belonging to stolbur group) could be found in symptomatic samples from eastern and north-western parts of Croatia. No phytoplasmas were detected in samples from Dalmatia and Istria. The EPPO Secretariat had previously no information on the occurrence of grapevine bois noir phytoplasma in Croatia. The situation of grapevine bois noir phytoplasma in Croatia can be described as: Present, only in eastern and north-western parts of Croatia.
Sources
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Šeruga, M.; Ćurković Perica, M.; Škorić, D.; Kozina, B.; Mirošević, N.; Šarić, A.; Bertaccini, A.; Krajačić (2000) Geographical distribution of bois noir phytoplasmas infecting grapevine in Croatia.
Journal of Phytopathology, 148(4), 239-242.
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