Filling The Canopy: Volunteers Replace Trees Killed By Invasive Species

In an urban forest, trees don’t just provide aesthetics, they prevent river overflow and filter pollution.

Since the early 2000’s, tens of millions of North American ash trees have been killed from a non-native insect, the emerald ash borer, that arrived via shipping pallets in Michigan. The eastern Asia beetle has killed thousands of Pennsylvania trees and nearly 50 in Pittsburgh’s Riverview Park. Read Full Article