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root rot

root rot (GB)

This threatening vine disease (also known as fall-over illness) is caused by various ones occurring either individually or in combination mushrooms caused. The most common are Armillaria mellea (Hallimasch or hedge sponge), Roesleria hypogaea and Rosellinia necatrix. The vines show a whitish blanket under the bark on the lower parts and the root (mycelial plaques = area of fungal threads). These occur particularly in vineyards with earlier trees. The vines gradually die or die suddenly (see also under apoplexy ). Rotting of the roots can also be caused by soil that is too damp (wet stress) and animal pests such as the phylloxera and larvae of the root flies are caused or favored, since the fungi and other harmful substances such as bacteria can easily penetrate. The mushrooms are controlled by smoking. In case of waterlogging, the root mold (Dematophora necatrix) occur. A specific form is that Cylindrocarpon root rot (Cylindrocarpon cancer). See also a list of all diseases and pests below Vine enemies,

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