It seems that the spontaneous or sylvan vine is a plant of ancient, even prehistoric origin. Its discovery, however, by man, dates back to the Paleolithic era and gave rise to several theories on how it could have started. One of the most suggestive theories is that which sees the first men picking the berries of wild vines in imitation of birds. The use of a container in which to store the berries and the pressure on each other, would have made the juice flow out, producing a kind of rudimentary wine, consumed by our ancestors. It is believed that the first plant was domesticated in Anatolia or in the transcaucasian area more than 8000 years ago. The Greeks then cultivated vines with low rows that exported to Italy in their colonies; the Etruscans instead knew only very high vines. Since then, the vine is still one of the most loved and prized crops.
The presence of a viral infestation is particularly deleterious for vines, and is manifested by a very precise symptomatology. In fact, the plant can present structural damage, growing abnormally. Even chromatic alterations of the most sensitive components of the plant is an evident index of its disease. Among the most widespread diseases of viral origin we remember: those with complex curling and infectious degeneration, those with curly wood and those with curling of leaves. Depending on the symptoms manifested, the first type takes on different names: cannabis mosaic, yellow mosaic, perinerval coloring. It is a very common infectious disease in ancient vines and caused by nematodes. Nine viruses are responsible for leaf curling, such as GLRaV, while among the viruses that cause wood curl we mention the RSP.