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Also known as Mauche or plant cancer, Rebstock disease, which also occurs in hundreds of other plants. It is feared as “root crop” on fruit trees. At the Rebstock is the Mauke through that bacterium Agrobacterium vitis causes and occurs especially after freezing cold winters with longer temperatures below 15 ° Celsius, which damaged the vines. It is expressed by light brown in spring Gallen (Growths, cancer nodes) on the lower part of the trunk mostly above the grafting point, which can later pull up like a strip. As the process progresses, the overgrown and darkening tissue grows out of the bark and often only causes the vine to die after years. The picture shows the disease in an advanced stage on one Müller-Thurgau vine,

Mauke to Müller-Thurgau Rebstock

Almost all European varieties are susceptible Vitis vinifera, certain varieties of American Vitis labrusca are against resistant, To avoid the vines in winter frost to be protected. How the bacteria get on the vines has not yet been clarified. The distribution may take place at finishes about infected mother plants from documents or scions, The mauke cannot currently be tackled directly. The disease has been examined in detail recently and the first successes have been achieved genetic engineering Measures achieved. See also a list of all diseases below Vine enemies,

Picture: © LWG - Bayern

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