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Bacteria necrosis

The causative agent of this vine disease is the Middle Eastern bacterium Xylophilus ampelinus (formerly Xanthomonas ampelina). It is one of the many types of proto bacteria, which are known to cause many plant diseases. The objective is on vines of the species Vitis vinifera. The symptoms usually manifest after 3 to 4 weeks exaggerated and stems and after 10 to 14 days Scroll, They first appear as reddish brown stripes before they crack into the wood structure and necrotic Lead tissues. The shoots then wither and dry out before they finally die. If there is an infection before blossom these typically develop a black color before they die and fall to the ground. Root symptoms are rare. The bacterium prefers moist and wet conditions. So far there have been occurrences in Greece. France. Germany, the Turkey and in areas South Africa,

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