We have been noticing damage on White Ash trees (Fraxinus americana) over the course of this winter, particularly in the southern lakes region. In the picture below, you will notice the light bark discoloration on the tree trunks. This discoloration is called ‘blonding’ which is the result of woodpeckers feeding on the Emerald Ash Borer larvae in the bark.
Unfortunately, this is a non-native pest which means there are no natural predators to keep these infestations in check. While there are treatments available to prevent the infestation of this invasive insect, the rule of thumb is that if you see the damage it’s best to remove the tree. Once the infestation has taken place the treatments are not considered to be very effective. Please also note that Green Ash trees are also affected.
Safety is our primary concern. White Ash deteriorates faster than many of our other native trees such as Oaks. Once an Ash tree dies, the wood quickly decays and compromises its structural integrity. Affected trees located along driveways or near houses should be removed immediately. Our expert arborists can safely remove the trees and eliminate the potential hazards.