The American wine expert Dr. Nelson J. Shaulis (1913-2000) began his career at the Cornell University Agricultural Experiment Station in Geneva (New York State). In 1978 he became a professor of viticulture. Shaulis did revolutionary development work at foliage care by experimenting with the grape variety Concord the consequence of too strong a canopy (shade) on insufficient earnings and recognized and demonstrated insufficient ripeness of the grapes. That is why he was also called the "father of leaf care".
Until the mid-1960s, he developed the at Cornell University based on his research training systemGeneva Double Curtain (CDC). Under his leadership, the first machines for mechanical vintage and pruning developed. His findings had a major impact on those in the New world measures introduced regarding quality-increasing yield restriction, In recognition of his outstanding research and achievements, he became a fellow of the American Society of Horticultural Science in 1972. It is the most prestigious award from this organization. See also under Viticulture personalities,