Right next to it, the different grape diseases in the Condado do Tea region are listed. Each of the diseases listed manifests itself differently in both the leaf and the cluster and must be detected as soon as possible by the winegrower to prevent its spread and the subsequent death of the plant.
Historically, phylloxera was the most devastating pest in the world of vineyards, and since its arrival in Europe—around 1870—it has influenced the current vineyard planting system.
This insect, similar to a yellowish aphid, called "phylloxera," feeds on the nutrients it finds in the vine's roots. It pierces the roots until a kind of tumor or nodule forms, obstructing the flow of sap and eventually killing the plant after about three years.
This pest was introduced to Europe through France, originating from North America. In Galicia, it first appeared in 1882 in the Ourense municipality of Vilardevós.
Although this disease still exists underground today, it can be overcome by using American rootstocks, which are planted directly in the ground. The desired grape variety is then grafted onto these rootstocks. Therefore, European vines are always grafted onto American rootstock.
The following screens contain information about the different grape varieties recognized and authorized by the Rías Baixas Designation of Origin (D.O.). The white grape variety "Albariño" is the best adapted to our climate and soil and represents 96% of production in Galicia.
The second main white variety in the Galician community is "Treixadura", which along with the Albariño variety, is mandatory in wines with the D.O. label. “Rías Baixas Condado do Tea” makes up 70%. The remaining 30% is optional, and you can add or not add another of the permitted white varieties.
