Already in the antiquity in the Greeks and Romans common education system in which the vines grow on or between trees (Alberata = tree). Small or annual cut mulberry trees, chestnuts, maples, poplars or elms are used as support. Two to four vines were planted for each tree. Often this was used in combination with arable crops. In extreme cases, the vines are raised up to ten feet high. The relatively expensive harvest must be done in this case by means of ladders. In part, this system is still used today in Italy. In the regions Emilia-Romagna. Tuscany and Veneto there are local variants. In Campania This traditional form is under the DOC provisions for Aversa admitted or promoted as a cultural heritage. The ladders are referred to here as the "Scale Napoletane". See also Constellations under training system (Systems) and Weingarten Care (Activities).