In this Friday, Aug. 24, 2018, photo, a worker rakes wild blueberries at a farm in Union, Maine. Unlike cultivated blueberries, which are grown in states such as New Jersey and Washington, wild blueberry fields contain different varieties, which results in different sizes and colors. Nearly 100 percent of the crop is frozen, and they are used in a host of frozen and processed foods. (AP Photo/Robert F. Bukaty)