11.   California vineyards are still recovering from an epidemic of phylloxera, a vine-destroying insect, which has forced the replanting of thousands of acres of wine grapes.

12.   Extensive experimentation in the vineyard is on-going, in clones, rootstock, trellising, pruning and just about anything that relates to growing wine grapes.

13.   Forty years ago, conventional wisdom held that European wine grapes could not grow in the cool Finger Lakes region in west-central New York.

14.   For well over a century, it was the principal U.S. wine grape.

15.   Her biggest triumph came in unraveling the kinship of a large family of important wine grapes, none of which had been known to be related to each other.

16.   In fact, wine grapes have outpaced other commodities, such as lettuce and broccoli.

17.   In Italy, these sweeteners are made from wine grapes and go by regional names like saba, sapa, vin cotto or mosto cotto.

18.   In the Loire Valley, on the other hand, it is the primary red wine grape.

19.   In the years after planting his first Chardonnay, Robert Young was already building a name for his high-quality wine grapes.

20.   It is too cold for the successful commercial cultivation of wine grapes.