You are using an old browser that may not function as expected.
For a better, safer browsing experience, please upgrade your browser.

Log in Become a Member


Term for the method used to test whether a vine is infected by bacteria, viruses or the like. When vines are imported, this is also carried out in quarantine. Here, the sap of the plant to be tested is transferred to so-called indicator plants, which are capable of or particularly resistant to the test and show the typical symptoms of a certain disease relatively quickly and distinctly. For example, the Cabernet Franc grape variety, which is particularly susceptible to leaf roll disease, is used as an indicator. The sap of the two plants can be transferred either by rubbing parts of the plant (leaves) or by grafting. Other test methods are ELISA and PCR. See also under vine enemies.

Voices of our members

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)

The world's largest Lexicon of wine terms.

26,291 Keywords · 46,901 Synonyms · 5,323 Translations · 31,612 Pronunciations · 194,811 Cross-references
made with by our author Norbert F. J. Tischelmayer. About the Lexicon