The grapevine disease (PD) belongs to the group of yellowing diseases. It first appeared in Southern California in 1880. At that time, 20,000 hectares of vines were destroyed here in just five years. It is also known as California Vine Disease, Mysterious Disease or Anaham Disease (because it is widespread in California up to Anaham). The US plant pathologist Newton B. Pierce (1856-1916) successfully researched the disease, which was named after him.
From around 1940, the disease spread from California's Central Valley across the entire southern USA, Mexico and Central America. In the USA, the entire southern belt from California in the west via Texas to Florida on the east coast is affected. Flavescence dorée is a grapevine disease with similar symptoms but different pathogens.
![]()
For me, Lexicon from wein.plus is the most comprehensive and best source of information about wine currently available.
Egon Mark
Diplom-Sommelier, Weinakademiker und Weinberater, Volders (Österreich)