Powdery mildew is often most severe in portions of the vineyard and/or individual canopies that are subject to shading. Although this phenomenon is widely recognized, it has received relatively little formal study. Willocquet et al. (1996) showed that UV-B radiation negatively impacted both conidial germination and mycelial growth of Uncinula necator.
They suggested that solar radiation is an important factor in the development of grape powdery mildew epidemics, and that training systems that increase exposure of the vines to sunlight could help to reduce disease development.
Our field experience suggests that powdery mildew may be a particular problem not only in specific vineyard and canopy locations subjected to shading, but also regionally in seasons with reduced solar radiation resulting from prolonged periods of cloudy weather.
The seasonal character of harvests limits winemaking considerably, especially oenological research. Thus, conserving sterile musts during the whole year to carry out experiments is certainly a very...
Laurent Audeguin, IFV French Vine and Wine Institute
Climate change, reduction of pesticides, diversity, preservation of the patrimony are priorities for the research sector. Improvement of grapevine plant material through selection or hybridization ...
Carlos F. Gonzalez, Texas A&M University; Anika Kinkhabwala, A&P Inphatec
A break-through technology developed exclusively for viticulture that protects growing vines under disease pressure, or as a curative after disease symptoms become visible specific to Pierce’s Dise...
Recording of the webinar dedicated to the innovation project VITICAST
The aim of the VITICAST project is to optimise the production and sustainable cultivation of vines through innovation in the management of the most common fungal diseases (downy mildew, powdery mil...
Anne-Sophie Spilmont, IFV; Giuseppe Carella, University of Florence
Discover the results of research on the assessment of grafted vines quality through the use of X-Ray Tomography and the use of microorganism against the wood pathogens
Silvia Laura Toffolatti et al., University of Milan
Downy mildew is one of the most severe diseases of Vitis vinifera, the grapevine species cultivated worldwide for wine fresh fruit and raisin production. It is caused by the oomycete Plasmopara vit...
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