IT’S hard to dismiss the current locavore boom in the Berkshires as mere fashion. In fact, the national enthusiasm for eating farm-to-table has roots in western Massachusetts. The nation’s first agricultural fair was held in Berkshire County in the early 19th century, and in 1986, when the country’s first two community-supported agriculture farms were established, one was in the southern Berkshires. (continued on NYTimes.com)