Ashes to Ashes
For years the killer stalked Detroit and its suburbs undetected. Now it has unleashed an epidemic that will kill millions. The killer is an insect, the emerald ash borer, and the victims are ash trees. "The emerald ash borer is one of the most challenging and difficult plant pests that any state has ever had to deal with," says Sara Linsmeier-Wurfel of the Michigan Department of Agriculture.



