mainly Malbec. During the 19th century Peruvian wine-making went further into decline. Demand in industrialized Europe caused many Peruvian winegrowers to shift the land use from vineyards to lucrative cotton fields, contributing further to the decline of the wine and pisco industry. This was particularly true during the time of the American Civil War (1861–1865) when the cotton prices skyrocketed due to the Blockade of the South and its cotton fields. Also in South Africa did wine making suffer a stunning blow in the 1860s with the implementation of the Cobden–Chevalier Treaty in 1860 that forced South African wines to compete with French wines in Britain and resulted a doubling of French wine imports to Britain. South African vineyards also suffered a second setback after the arrival of the Phylloxera plague in the 1880s. 20th century Chilean wine exports to Argentina were hampered by the lack of effective land transport and a series of war scares. This situation changed after the Pactos de Mayo were signed in 1902 and the inauguration of the Transandine Railway in 1909, making war unlikely and trade across the Andes easy. Governments agreed to sign a free trade agreement. Argentine winegrowers association, Centro Vitivinícola Nacional, dominated by European immigrants protested vigorously against the free trade agreement since Chilean wines were considered a threat to the local industry. The complaints of Argentine wine growers in conjunction with that of cattle farmers in Chile ended up tearing down the plans for a free trade agreement. Characteristics of New World wines Style Since New World vineyards are generally in hotter climates than those of Central-Northern Europein fact some major New World regions are irrigated desertNew World grapes tend to be riper. Thus New World wines tend to be correspondingly more alcoholic and full-bodied. Critics such as Robert M. Parker, Jr. have influenced New World producers and consumers towards a fruitier style, with more use of new oak. However, in recent years there has been a reaction against some of the very oaky, alcoholic styles that typified late 1980s Australian Chardonnays for example, as cooler vineyards have been identified and winemakers have become more sophisticated and more restrained. Varietal labelling Traditionally New World wine used names of well-known European regions, such as Burgundy, Champagne, Sherry, Port, and Hock. This gave consumers a general idea of how the wine might taste. This changed as winemakers developed the confidence to develop