Dr. Dan Herms of Ohio State University and others have done studies on ash mortality as EAB moved through parts of Michigan and Ohio. His Ash Mortality Curve was partially developed using dendrochronology which is the study of the annual growth rings in trees, especially as a way of dating pest infestations or determining past climatic conditions. This data shows a steep incline of the death rate of the Wisconsin ash trees as the borer overwhelms an area. Ultimately, the graph tells us that after EAB has been in an area for a specific time period, the number of dead ash trees climbs exponentially.
If you have not prepared already, the time to deal with emerald ash borer in Wisconsin has been upon us for years. Yet, there are still too many ash trees that are going untreated. If you have a thriving ash tree, the time to protect it is now. Planting new, diverse species of trees is an option when considering your possibilities for your landscape. If you have been on the fence about what you would like to do about your Wisconsin ash trees, please get in touch with your Wachtel Tree Science Certified Arborist to develop an action plan.
Contact our Certified Arborists today for more information on how you can protect your Ash trees with effective EAB treatment options.