terclim by ICS banner
IVES 9 IVES Conference Series 9 GiESCO 9 GiESCO 2023 9 How to deal with the Green Deal – Resistant grapevine varieties to reduce the use of pesticides in the EU

How to deal with the Green Deal – Resistant grapevine varieties to reduce the use of pesticides in the EU


With its Farm-to-Fork Strategy, which is a part of the European Green Deal, the European Union aims at reducing the amount of pesticides used in agriculture by 50% until 2030. As viticulture uses around 70% of the fungicides in the EU, there is substantial pressure on winemakers to reduce their pesticide input. On top of the political goal, winegrowers face increased pressure from the public demanding a more sustainable production of wine. Since the introduction of downy mildew, powdery mildew and other pests and pathogens from North America to Europe in the 19th century, substantial breeding efforts were undertaken to develop disease-resistant varieties and reduce the amount of plant protection products needed for harvesting healthy grapes. Today’s winegrowers in Europe can choose from many new varieties allowing them to reduce fungicide input by 50-80% and produce high quality wines on par with the valued traditional cultivars. This review will provide an overview on the current situation of disease-resistant varieties in European viticulture. Selected European breeding institutions and private breeders will be introduced and their most important grapevine varieties will be presented. Many resistant varieties are available for winegrowers today, however, even the most robust new varieties will not lead to a more sustainable viticulture if the market does not accept them. The adoption and acceptance of new varieties by winegrowers and consumers is still rather low, but the interest in these varieties is rapidly growing. The production of grafted vines of disease-resistant grapevine varieties allows the estimation that the area of disease-resistant varieties will significantly grow in the next years in Europe.


Publication date: June 20, 2023

Issue: GiESCO 2023

Type: Article


Oliver Trapp1*, Komlan Avia2, Rudolf Eibach3, Reinhard Töpfer1

1Julius Kuehn Institute – Institute for Grapevine Breeding Geilweilerhof, 76833 Siebeldingen, Germany
2Université de Strasbourg, INRAE, SVQV UMR-A 1131, F-68000 Colmar, France
3Verband Deutscher Rebenpflanzguterzeuger e.V., Waldstr. 36, 71254 Ditzingen, Germany

Contact the author*


grapevine, breeding, disease tolerant varieties, sustainability, market acceptance


GiESCO | GIESCO 2023 | IVES Conference Series


Related articles…

An excessive leaf-fruit ratio reduces the yeast assimilable nitrogen in the must

Yeast assimilable nitrogen (YAN) in the grape must is a key variable for wine quality as a source of aroma precursors. In a situation of YAN deficiency, a foliar urea application upon the vine at veraison enhances YAN concentration and facilitates must fermentation. In 2013, Agroscope investigated the impact of leaf-fruit ratio on the nitrogen (N) assimilation and partitioning in grapevine Vitis vinifera cv. Chasselas following foliar-urea application with the aim of improving its efficiency on the YAN concentration.

Extraction of polyphenols from grape marc by supercritical fluid extraction (SFE) and evaluation of their ‘bioavailability’ as dietary supplements

In the winemaking process, several compounds that remain in the grape skins and seeds after the fermentation stage are bioactive-compounds (substances with potential beneficial effects on health) that can be extracted in order to recovery valuable substances with a high commercial value for the cosmetic, food (nutraceuticals) and pharmaceutical industries. The skins contain significant amounts of bioactive substances such as tannins (16-27%) and other polyphenolic compounds (2-6.5%) in particular, catechins, anthocyanins, proanthocyanins, quercetin , ellagic acid and resveratrol.

The impacts of frozen material-other-than-grapes (MOG) on aroma compounds of red wine varieties

An undesirable note called “floral taint” has been observed in red wines by winemakers in the Niagara region caused by large volumes of frozen leaves and petioles [materials-other-than-grapes (MOG)] introduced during mechanical harvest and subsequent winemaking late in the season. The volatiles, which we hypothesized are responsible, are primarily terpenes, norisoprenoids, and specific esters in frozen leaves and petioles. The purpose of this study was to investigate the volatile compounds which may cause the floral taint problem and explore how much of them (thresholds) may lead to the problem. Also, the glycosidic precursors of some of these compounds were analyzed to see the changes happening during frost events.

Aromatic profile of six different clones of Chardonnay grape berries in Minas Gerais (Brazil)

Aromas are one of the key points in food analysis since they are related to character, quality and consequently consumer acceptance. It is not different in the winery industry, where the aromatic profile is a combination of viticultural and oenological practices. Based on the development of more aromatic clones and on the potential to produce sparkling wines at Caldas, in the southern region of Minas Gerais (Brazil) (21°55´S and 46°23´W, altitude 1,100m), the aim of this work was the determination of volatile compounds in six different clones of Chardonnay grape berries to better understand which compounds add bouquet to the wine, and additionally comprehend the impacts of the edaphoclimatic and annual conditions on the improvement of grape-growing and winemaking practices.

Improving stilbenes in vitis Labrusca L. Grapes through methyl jasmonate applications

Grapes (Vitis sp.) are considered a major source of phenolic compounds such as flavonols, anthocyanins and stilbenes. Studies related to the beneficial effects of these compounds on health have encouraged research aimed at increasing their concentration in fruits. On this behalf, several plant growth regulators such as jasmonic acid and its volatile ester, methyl-jasmonate (MeJa), have demonstrated promising results in many fruits. However, Brazilian subtropical climate might interfere on treatment response. The present study aims to evaluate the application of MeJa in the pre-harvest period in Concord and Isabel Precoce grapes (Vitis labrusca L.).