Please see this flyer for a detailed description of the five Pierce’s disease-resistant wine grape cultivars developed by Andy Walker at UC Davis:
https://site.extension.uga.edu/viticulture/files/2020/03/UCD-Pierces-Disease-Resistant-Winegrape-Releases.pdf
All five cultivars have been licensed to these nurseries: Casa Cristal Nursery; Double A Vineyards; Martinez Orchards; Novavine; Sunridge Nurseries; Wonderful Nurseries
