Emerald Ash Borer (EAB) could be a death sentence for your Ash trees. We have not seen a potential insect infestation of this magnitude since the 1970’s with Dutch Elm disease. Your Ash trees can be treated if treatment begins before they are infested. Once the EAB larvae have killed more than 30 percent of a tree, it is fatal. Now that EAB has reached Omaha, we’re recommending all untreated Ash trees to be injected with a product called TREE-äge. This product has been found to be 99% effective at stopping Emerald Ash Borers, and usually lasts for a little over 2 years.