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Nepoviruses

Name for viruses transmissible by nematodes; see there.

These nematodes (eelworms, roundworms, trichinae) are among the most species- and individual-rich animal group in the world, with 20,000 different species. Most are very small, ranging from 0.1 to around one millimetre (the largest species, at over 8 m, lives in the sperm whale placenta). Unlike more highly developed arthropods (such as the earthworm), they have no vessels. Usually there are males and egg-laying females, but occasionally there is also a sexless virgin-breeding (pathenogesis). Four larval moults are undergone until sexual maturity. Feeding takes place through a hollow mouth spine that moves rhythmically while sucking. They live with numerous species in the soil and also feed on bacteria or fungi, which is a positive element in the ecological system of a vineyard soil.

Nematoden - Graphik

As a pest in the vineyard

In the 1930s, they were recognised as a pest of the grapevine; until then, phylloxera had been mistakenly assumed. In the vineyard, two groups in particular occur, which are very dangerous for the...

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Roman Horvath MW

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.

Roman Horvath MW
Domäne Wachau (Wachau)

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