Photo taken on July 25, 2018 shows a sign of Heil Harvest company in Wausau, Wisconsin, the United States. Joe Heil has grown ginseng for more than 20 years. His Wisconsin-based farm with 50-acre ginseng was lucrative. Recently, however, the fear of loss looms large in his mind. As the U.S.-ignited trade frictions with China escalate, some customers who have expressed interest in purchasing Wisconsin ginseng have backed off. (Xinhua/Liu Jie)?