By the Numbers: $10.7 billion

The estimated cost of treating, removing and replacing the trees expected to be affected by the invasive emerald ash borer

By Catherine Krikstan |
Adult emerald ash borers feed on the leaves of ash trees, but it is the larvae that do the most damage: as they feed on a tree’s nutrient-rich inner bark, they disrupt the tree’s ability to transport food and water from its roots to its leaves. (Image by Macroscopic Solutions/Flickr)

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