A Bumblebee (IMAGE) University of Guelph Caption Low levels of pesticides can impact the foraging behaviour of bumblebees on wild flowers, according to a study co-authored by a University of Guelph professor. Credit University of Guelph Usage Restrictions For use only in connection with this story. 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.