Add Yahoo as a preferred source to see more of our stories on Google. Looking up at an ash tree's leaves and branches. - La fotisto/Shutterstock Sprays of white blossoms in spring, dappled shade in ...

From British Columbia to California, volunteers are collecting ash seeds to help researchers at Oregon State University find genetic resistance to the invasive emerald ash borer. The emerald ash borer ...

The invasive emerald ash borer, native to northeast Asia, has spread to 37 states over the past quarter century, killing nearly all of the ash trees it infests. But in Maine, a coalition of ...

There’s a lot to love about mountain ash, a delightful native tree that fits easily into urban and suburban landscapes. It can be grown as a small single-trunk tree or with multiple trunks, giving it ...

An error has occurred. Please try again. With a The Portland Press Herald subscription, you can gift 5 articles each month. It looks like you do not have any active ...

While the invasive emerald ash borer continues to kill ash trees in 13 states, including Illinois and Wisconsin, researchers at Iowa State University in Ames are heading an effort to collect ash seeds ...

Add Yahoo as a preferred source to see more of our stories on Google. From British Columbia to California, volunteers are collecting ash seeds to help researchers at Oregon State University find ...

This native tree for cooler climates produces vibrant red–orange berries in late summer. There’s a lot to love about mountain ash, a delightful native tree that fits easily into urban and suburban ...