Viticulture - Vine diseases
5 important questions on Viticulture - Vine diseases
What are the main vine diseases?
- FUNGUSES: More common in oceanic climates (too rainy during the vegetative period and the leaves and grapes con be affected by rot) --> Grey mold, downy mildew and powdery mildew
- PESTS: More common in all climates --> Phylloxera, nematodes, moths and sharpshooters
What do winemakers do to battle the diseases?
- Synthetic chemicals
- Fungicides
- Pesticides
What is organic farming?
- Synthetic chemicals are prohibited
- Natural and healthier product and methods
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What are the 3 main things that can be done for an organic farming?
- BORDEAUX MIXURE: blend composed of copper sulfate and lime
- PHEROMONES: Winegrowers use small capsules that release synthetic female pheromones in their vineyard. This creates confusion in the males and they are unable to mate
- BIRD BOXES: Bird boxes attract birds that eat and thereby reduce the number of sharpshooters
What are natural wines?
- Wines that have less sulfites
- Without added sulfites
- Other winemakers use sulfites before bottling to avoid oxidation in bottles and to keep the malic acid --> Natural wines don't use it for the oxidation
- Oxigen is goig to modify the molecules that we have in the wine, the aromatic ones and the alcohol
- Full-bodied red wine you don't need to put sulfites for the oxidation because they have a lot of tannins
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