The Free Press quoted David Yarborough, a wild blueberry specialist with the University of Maine Cooperative Extension, in a report on blueberries in the U.S. economy. While Chinese tariffs are impacting some agricultural markets, 75 percent of blueberries produced in the United States are sold domestically, according to the article. Last, year, 2 million pounds read more The Free Press quotes Yarborough in report on economics of blueberries