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Also called mauche or plant cancer called Rebstock disease, but also occurs on hundreds of other plants. On fruit trees she is feared as a "Wurzelkropf". At the Rebstock the mauke gets through the bacterium Agrobacterium vitis causes and occurs especially after frosty winters with longer temperatures below 15 ° Celsius, whereby the vines were damaged. It manifests itself in the spring by light brown Gallen (Growths, cancerous knots) at the base lower part mostly over the finishing point, which can later pull up the trunk trifold. In the further course, the proliferating and darkening tissue grows out of the bark and finally, after years, often causes the vine to die off. The picture shows the disease at an advanced stage Müller-Thurgau vine,

Mauke to Müller-Thurgau Rebstock

Almost all varieties of European are susceptible Vitis vinifera, certain varieties of American Vitis labrusca are on the other hand resistant, To avoid the vines in the winter against frost to be protected. How the bacterium reaches the vines is not yet clear. Possibly the distribution takes place at finishes about infected mother plants of documents or scions, The Mauke can currently not be fought directly. Recently, the disease has been extensively studied and initial successes genetic engineering Measures achieved. See also a listing of all diseases below Vine enemies,

Image: © LWG - Bavaria

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