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Lexicon

The largest wine encyclopedia in the world with 26,079 Terms.

0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Yellowing

General term for the yellowish discolouration of the leaves of the vine. This can be caused by a lack of nutrients (e.g. manganese) or as a consequence of diseases. Both viruses and insects such as cicadas can act as pathogens or carriers:

Chlorosis (jaundice)
Flavescence dorée (golden yellowing)
Brushwood disease
Blackwood disease (Bois noir)

Vergilbung - Flavescence dorée und Chlorose (Blatt)

See also a complete list of all vine pests and vine diseases under Vine Enemies and the keywords there for further information.

Picture left: © H. Reisenzein - AGES Wien
Picture right: The virtual vine doctor - Infodienst Weinsberg

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Diplom-Sommelier, Weinakademiker und Weinberater, Volders (Österreich)