The species largely disappeared with the decline of viticulture in the deaf-and-valley Vorbach. According to information of public teaching and research center for wine and fruit growing in the vineyard were only in a vineyard about 400 vines of red wine. In the early 1960s an attempt was made in the vineyard to revive the species by breeding activities again.
aina nyekundu ni Tauberschwarz zamani, unaojulikana zimehifadhiwa uhakika. aina kiasi kikubwa kutoweka na kupungua kwa viticulture katika viziwi-na-bonde Vorbach. Kulingana na taarifa ya mafundisho ya umma na kituo cha utafiti kwa ajili ya mvinyo na matunda kukua katika shamba la mizabibu walikuwa tu katika shamba kuhusu mizabibu 400 ya divai nyekundu.