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Lexicon

The largest wine encyclopedia in the world with 26,386 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

Grapevine leafroll associated virus

Virus complex (leafroll virus, GLRaV), which causes leafroll disease on the vine; see there.

Leafroll disease

This disease, originating from the Middle East, has been known in Europe for a long time and is the most widespread grapevine virose. It is caused by the Grapevine leafroll associated virus (GLRaV), which nests in the phloem of the leading tissue. Viruses as the cause of the disease were recognised by the German grapevine breeder Georg Scheu (1879-1949). The different viruses (closter viruses) are designated with a number, seven different ones have been discovered so far (GLRaV1-7). The disease manifests itself in Europe beginning in July, the symptoms vary depending on the grape variety. The leaves begin to change colour in all shades - red in dark grape varieties and yellow in white...
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This page was last modified at 23 June, 2021 at 03:39.

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wein.plus is a handy, efficient guide to a quick overview of the colourful world of wines, winegrowers and grape varieties. In Wine lexicon, the most comprehensive of its kind in the world, you will find around 26,000 keywords on the subject of grape varieties, wineries, wine-growing regions and much more.

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The world's largest Lexicon of wine terms.

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