The red grape variety comes from Italy. Synonyms are Don Bosco, Malvasia a Grappolo Corto, Malvasia Castelnuovo Don Bosco, Malvasia di Castelnuovo, Malvasia di Castelnuovo del Bosco and Malvasia di Castelnuovo Don Bosco. It is one of the many mostly unrelated varieties with the name part Malvasia (see there). It must not be confused with Malvasia di Casorzo, Malvasia Nera Lunga or Malvasia Rosa (mutation of Malvasia di Candia Aromatica), despite the fact that it appears to have synonyms or morphological similarities. According to DNA analyses carried out in 2013, it originates from a presumably natural cross between Muscat Blanc x unknown partner.
The early to medium ripening vine is resistant to frost, powdery mildew and botrytis, but is susceptible to downy mildew. It produces aromatic red wines. The variety is cultivated in Piedmont, where it is permitted in the DOC wines Collina Torinese and Malvasia di Castelnuovo Don Bosco, among others. The area under cultivation in 2010 was 89 hectares, with a downward trend (statistics Kym Anderson).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012
Pictures: M.I.P.A.A.F - National Vine Certification Service