Flies and Bees Act Like Plant Cultivators (IMAGE) University of Zurich Caption Field mustard: The plant pollinated by bumblebees is larger (left) than the plant pollinated by hoverflies. Credit UZH 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.