A decade after ash dieback was found in the UK, there is still a real threat of importing other diseases with a “similarly devastating” impact, conservationists warn. The disease, which causes leaf ...

Along the St. Louis River, more than 60,000 trees will be planted to replace dead ash trees and protect the estuary. With dead ash trees all around, Nathan Wagner, of Janesville, Wis., a member of ...

Research entomologist Jian Duan cuts away bark from ash trees in search of emerald ash borers, an invasive species that has been killing off the trees. They’re looking particularly for those affected ...

Littleton has detected the Emerald Ash Borer in at least one tree in town. The beetle is a non-native pest that has the potential to dramatically change the landscape of Colorado's Front Range. "One ...

I wouldn't describe myself as a tree-hugger, in the truest sense of the word, but I do love trees. The same can be said for a great many people. I remember in the 1980s when Dutch elm disease was ...

What would you say is the greatest threat to the survival of our trees? Deforestation? Climate change? How about disease? Many of us don't really think about trees getting sick or infected but pests ...