In our region ash trees have a number of insect pests that the trees manage themselves. Emerald Ash Borer is exotic and ash trees don’t have adequate defenses. Because ash trees do have other pests, identifying the symptoms of Emerald Ash Borer is important.
Dr. John Ball provides information about how to identify a tree infested with Emerald Ash Borer. Dr. Ball is Professor, SDSU Extension Forestry Specialist & South Dakota Department of Agriculture Forest Health Specialist and SDSU Agronomy, Horticulture and Plant Science Department.
For how to identify an Ash tree infested by Emerald Ash Borer, See Dr. Ball’s article at this link: http://igrow.org/up/resources/06-2001-2018.pdf