Attract and Reward Concept (IMAGE) Cell Press Caption This diagram shows how nectar can enhance the survival and efficiency of predators and thus allow the establishment of more stable populations of these biocontrol organisms. Credit Stenberg et al./<i>Trends in Plant Science</i> 2015 Usage Restrictions Credit Required. 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.