Emerald Ash Borer (Agrilus planipennis) was first found in 2002 attacking Ash trees in Michigan. It is estimated that 50 million Ash trees have been killed as the spread continues throughout the Midwest. Aside from the loss in aesthetic and monetary value of these trees, the environmental impact is nothing short of astounding. According to the National Wildlife Federation, the losses can potentially translate into an additional 33 million tons of CO2 in the atmosphere annually and an additional $4 billion in energy costs. A single acre of forest absorbs 6 tons of CO2 and releases 4 tons of oxygen. The US Department of Agriculture reports the net cooling effect of a single tree is equivalent to 10 room-size air conditioners operating 20 hours per day.
So where do we draw the line in deciding to remove, replace, or treat our Ash trees? The Forest Service estimates that healthy mature trees can add up to 10% to a properties value. The bottom line is it will typically cost less to treat a mature tree than it will to remove and stump grind it. If the tree is less than 40% declined, it can be saved. The average cost of removal, grinding, and replacement is roughly $1,800. Keep in mind the replacement tree will only be 1-2" caliper. The average cost of annual treatment is $150. EAB is expected to move through a given area within 5-6 years. If we consider 7 years of annual treatment, you are able to keep your large, mature ash tree for almost half the cost of removal. The most effective window of treatment is in spring while the tree is actively growing.
As you can see the reasons to save your tree are simple:
- Aesthtic Value
- Energy Savings
- Environmental Impact
- Reduced CO2 & Air Pollution
- Noise Pollution Reduction
- Soil Protection
- Replacement Cost Savings
- Property Value
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