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white rot

pourriture fibreuse (F)
white rot (GB)
marciume bianco (I)

A disease (also called spot necrosis or corrosive rot) of the wood caused by the fungal species Coniella diplodiella (also Coniothyrium diplodiella) at high humidity and higher temperatures (below 15 ° C the fungus is inactive) is mainly caused in the hot summer months of July and August. This is what is responsible for the wood structure lignin decomposes and affects stability. The fungus survives on plant remains in the ground for several years and becomes hail by hitting grains on the shoots and leaves whirled up. For this reason, the fungal attack is also called hail disease. The spores penetrate through the injured parts of the berries. Round, whitish lightening occurs first. Then the berry skin peels off the pulp and the berries die. On young shoots too necrosis occur. The rotten berries can make the wine fault Schimmel taste (Hail flavor) cause. A fight in the vineyard takes place through fungicides, The vine disease caused by other fungi Esca is sometimes referred to as white rot. See also under bunch rot and Vine enemies,

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