Emerald Ash Borer (Agrilus planipennis) (IMAGE) Entomological Society of America Caption By the time the adult emerald ash borer (Agrilus planipennis) appears, it may be too late for nearby ash trees, as the pest inflicts the most damage in its larval form as it burrows beneath the bark of the tree. A new guide published in the open-access Journal of Integrated Pest Management outlines a set of four options for communities to choose from as they plan for the impact of the emerald ash borer. Credit Houping Liu, Ph.D., Pennsylvania Department of Conservation and Natural Resources Usage Restrictions Maintain attribution to credited source. 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.