The German winery owner Ökonomierat Gustav Adolf Froelich (1847-1912) lived in the town of Edenkoben (Rhineland-Palatinate). He is considered a pioneer in viticulture because he was involved with new techniques at an early stage. He was one of the first to combat powdery mildew in his vineyards with sulphur and experimented with the control of downy mildew using Bordeaux broth. From 1876 onwards, he earned special merits by marking, separate propagation and planting individual vines of the Silvaner variety, thus establishing clone selection in the breeding of vines in Germany. In 1925, his Silvaner cultivar was the first grape variety to be entered in the breeding register of the DLG (German Agricultural Society). Froelich also created the new breeding Dunkelfelder.
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