Predator Nursery (IMAGE) Virginia Tech Caption Virginia Tech Entomologist Scott Salom and mass rearing supervisor Carrie Jubb monitor the population of L. nigrinus feeding on hemlock woolly adelgid on hemlock branches in a Credit Virginia Tech Usage Restrictions Use with coverage of Dr. Salom's research 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.