French-American hybrid grapes were developed and saw some use in Europe, but more important was the practice of grafting European grapevines to American rootstocks to protect vineyards from the insect.
More important was the practice of using American grape rootstocks grafted to European grape vines to protect from the insect. French-American hybrid grapes were developed and saw some use in Europe.
French-American hybrid grapes were developed and saw some use in Europe. More important was the practice of using American grape rootstocks grafted to European grape vines to protect from the insect.
French-American hybrid grapes were developed and saw some use in Europe. More important was the practice of using American grape rootstocks grafted to European grape vines to protect from the insect.