The French wine expert Professor Joseph Vidal (1905-1985) came from a family of winegrowers and joined the University of in 1923 Montpellier
on. In 1928 he became director of crop protection in Oujda (Morocco). In 1946 he founded the Moroccan agricultural school in Meknes, where he also held the chair of viticulture as director. In 1957 he returned to Roussillon, where he founded and ran the technical wine institute in Roussillon. His works “Weinbau in Morocco
"(1951) with a description of the Moroccan grape varieties, as well as" Viticulture in Roussillon "(1959), where history, culture, vine diseases and wine production are dealt with. Joseph Vidal also did research on vine deficiency diseases, which he discovered in some varieties. At Montpellier University he was also a respected insect researcher.