Wheat is largely produced, and there are vineyards in some localities.
Cerevisiae, is never found wild, but the wine yeasts occur abundantly in the soil of vineyards, and so are always present on the fruit, ready to ferment the expressed juice.
In the Andean provinces of Mendoza, San Juan, Catamarca and Rioja viticulture attracts much attention, and the area in vineyards in 1901 was 109,546 acres, only 18% of which was outside the four provinces named.
The vine grows generally in France, except in the extreme north and in Normandy and Brittany.
The whole of the surrounding country is covered with vineyards, which (with the entertainment of foreign visitors) occupy the inhabitants.