Interest in mushroom-resistant grape varieties (PIWI) is still high and vine production is booming. The first successes are seen in the sale of some interesting varieties. But can this concept be of sustainable existence?
by Ing. Wolfgang Renner, Trial station fruit and wine growing Haidegg
Article published in FRUIT - WINE - GARDEN, Issue 1/2020
![PIWI finishing Austria PIWI finishing Austria](https://piwi-international.org/wp-content/uploads/2020/04/PIWI-Veredlungen-Österreich.jpg)
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