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The Latin term for "the isolation and isolation of suspected infectious agents or the isolation of a focus of infection from the environment as a protective measure against the spread and spread of epidemics" is also becoming increasingly important in viticulture. In the 20th century, it would probably have been possible to prevent disasters caused by phylloxera or the vine diseases of downy mildew and powdery mildew introduced by America if appropriate measures and strict controls had already been in place for the import of vines, as they are today. Today, most of the world's wine-growing countries have passed legislation on imported vines to prevent or at least detect the introduction of diseases. These are mainly diseases transmitted by bacteria, viruses and viroids. These are, for example, Pierce Disease or Flavescence dorée, but still well-known ones such as phylloxera, mildew and others. The quarantine period can last several years. This is supported by diagnostic procedures such as ELISA, indexing or PCR, which can identify vine diseases at an early stage. See also under vine enemies.

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