ROCOV, CZECH REPUBLIC - AUGUST 31:  Workers pack hop plants onto a wagon during harvesting on August 31, 2015 in Rocov, near Zatec, Czech Republic. Czech Republic is one of the world's largest hops producers, with 4600 hectares of land used for farming the plant. Representatives of the Hop Growers Union of the Czech Republic expect the harvest to be 4500 tonnes, around a quarter lower than last year, which was 6202 tonnes. About 80% of the hops are grown for export, with the most going to Japan, Germany and China.  (Photo by Matej Divizna/Getty Images)