German name for the vine disease Flavescence dorée; see there.
Also known as "Grapevine flavescence dorée phytoplasma", this relatively new vine disease was probably introduced into Europe from the eastern part of North America from the Great Lakes region in the 1940s. It first appeared on a massive scale in France-Armagnac in the early 1950s and then spread epidemically across southern France, Italy and Spain. Corsica was particularly hard hit because vine varieties that are particularly susceptible to this disease are cultivated here. It seems to occur preferentially in warmer regions, and its widespread spread may also be due to climatic changes or climate change. Individual observations with similar symptoms have also been made in Germany.