Eastern hemlock trees like these growing along Tracy Run in Allegheny National Forest are considered "keystone species" — meaning, they play fundamental roles stabilizing the forest ecology. The U.S.

LANSING, Mich. (WLNS) — The state of Michigan has taken an extra step to protect its Eastern Hemlock trees from woolly intruders. Not mammoths–adelgid. The Michigan Department of Agriculture and Rural ...

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Round, white hemlock woolly adelgid ovisacs are found on the undersides of branches near the base of the needles. (Michigan Department of Natural Resources) The Michigan Department of Natural ...

Are you a hiker or a biker? A discoverer or outdoor lover? This is your chance to make a big impact on Tennessee's trails. Adventure Scientists is looking for volunteers to take part in its new ...

Whether you own property or simply enjoy spending time outside, Michigan officials are encouraging you this winter to check for signs of the hemlock woolly adelgid: a tiny insect that threatens ...

Creating physical gaps in the forest canopy give eastern hemlocks more access to resources and help those trees withstand infestation by an invasive insect. A new study finds that creating physical ...

Add Yahoo as a preferred source to see more of our stories on Google. Are you a hiker or a biker? A discoverer or outdoor lover? This is your chance to make a big impact on Tennessee's trails.

A new study finds that creating physical gaps in the forest canopy give eastern hemlocks more access to resources and help those trees withstand infestation by an invasive insect. The approach adds ...