The hemlock woolly adelgid, an aphid-like invasive species that has been killing hemlocks in Nova Scotia since 2017. "This is a pandemic affecting trees," Kovacs said.

The adelgid has been wreaking havoc on hemlocks in eastern North America for many years, and was first seen in Nova Scotia in 2017. The tiny bugs kill hemlock trees by attaching to the base of ...

Removing hemlock from these areas where it’s the majority constituent would lead to a complete ecological collapse in these areas. So, basically, kind of a biodiversity desert.” ...

Hemlocks are a keystone species, which means large populations of birds, animals and plants depend on these trees, Roscoe said. They grow in areas where others cannot, such as in river valleys or ...

FREDERICTON — The offspring of beetles imported from British Columbia are ready to take up the fight against an invasive insect that is killing hemlock trees in Nova Scotia.