Karen Ripley is the Forest Health Monitoring and Invasive Insects Program Manager for the western region with the US Forest Service, which makes her the perfect guest to discuss the arrival of emerald ash borer (EAB) in the Pacific Northwest. EAB is an invasive boring beetle and effective tree-killer that threatens our native Oregon ash (Fraxinus latifolia) and other ornamental ashes in the Fraxinus genus. In this episode we discuss the history of EAB, what to expect, and how landowners and foresters can respond.