Just as English wine began to recover from the epidemics of phylloxera and powdery mildew in the mid-19th century, brought back by the explorers of New America, commercial English wine was dealt a heavy blow. In 1860 the government, under Lord Palmerston (Liberal), supported free trade and drastically cut the tax on imported wines from 1 shilling to twopence, a decrease of 83%. English wine was therefore outcompeted by superior foreign products that could be sold at a lower cost to the customer.