The winegrower Emerich Ráthay (1845-1900) came from a Hungarian noble family and studied at the University of Wien, It was founded in 1874 by August-Wilhelm Babo (1827-1894) to the Klosterneuburger Weinbauinstitut (Lower Austria) called and taught here the subjects mineralogy, geology, botany, zoology and plant diseases. The focus of his zoological studies was the biology of phylloxera, of Grape berry moth and the San José Scale, about which he published extensively. From the 1880s, he dealt with fungal diseases, especially with the fake mildew, He also did research into the different flower shapes and seedling of Vitis vinifera varieties and American vines and did pioneering work at the new breed of grape varieties. In 1888 he published the work "The Gender Relations of the Vines and Their Importance for Viticulture".
Ráthay also established the chemical investigation and research activity in Klosterneuburg, From the year 1870 he treated together with Dr. med. Leonhard Roesler (1839-1910) in the "Oenochemical experimental station" several then very current topics such as the so-called art wine question. After the retirement of August-Wilhelm Babo he became his successor and led in the years 1892-1900 the institute. A red wine variety created in Klosterneuburg in 1970 was named in his honor Rathay named.