Sweet Potato Sellers in the Gulu Region (IMAGE) American Phytopathological Society Caption Sellers in the Gulu region of northern Uganda selling sweet potato vines in 2014. Credit Paul Rachkara Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.