The white grape variety is a new variety between Eger 2 (Villard Blanc) x Csaba Gyöngye. Synonyms or cultivar numbers are EC 24, Egri Csillagok 24, Pearl of Zala, Parla de Zala, Perle de Zala, Pearl of Zala, Star of Egri, Zala Dende, Zala's Pearl and Zhemchug Zala. The name is derived from the Hungarian region of Zala. It contains genes from Vitis berlandieri, Vitis rupestris and Vitis vinifera. The hybrid was crossed in 1957 by the two breeders József Csizmazia and Laszlo Bereznai in Eger, and variety protection was granted in 1972. It was a crossing partner for the new varieties Evita Blanche, Piroska and Viktor. The early-maturing vine is moderately resistant to frost and drought, but susceptible to powdery mildew. It produces white wines with high acidity and is also used as table grape. In Hungary, the variety is mainly cultivated in the Alföld area on 1,065 hectares. There are further stocks in Germany (1 ha), Russia (193 ha) and Switzerland (0.1 ha). In 2016, a total of 1,259 hectares of vineyards were designated (Kym Anderson).