FILE PHOTO: Watermelon prices are displayed on a digital price tag at a 365 by Whole Foods Market grocery store ahead of its opening day in Los Angeles, U.S., May 24, 2016. REUTERS/Mario Anzuoni/File Photo
FILE PHOTO: Watermelon prices are displayed on a digital price tag at a 365 by Whole Foods Market grocery store ahead of its opening day in Los Angeles, U.S., May 24, 2016. REUTERS/Mario Anzuoni/File Photo