An invasive pest known for killing eastern hemlock trees is creeping ever deeper into the Adirondacks, according to a new ...

The DEC said it found the parasites on Lake Champlain's eastern shore around Port Douglas in Essex County and on the northern ...

Poison hemlock, the toxic plant that killed Socrates thousands of years ago, is becoming more prevalent in the Midwest.

Due to the introduction of exotic pests and pathogens, tree species are being eliminated one by one from forest ecosystems. In some cases, scientists can observe immediately how their loss affects ...

Trees infested wit hemlock woolly adelgid should be reported using the Midwest Invasive Species Information Network (MSIN), available online at www.misin.msu.edu or as a downloadable smartphone ...

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The hemlock woolly adelgid first started becoming a problem in the Finger Lakes in the 2000s. The invasive species can kill hemlock trees as the pest feeds, leading to series problems for plants ...

Hemlock woolly adelgid target hemlock and fir trees. The pests are invasive, sucking, aphid-like insects causing trees to die. They are too small to be seen by the eye, but the damage is visible.

Hemlock needles are two-ranked along the stem, which means that they lie in the same plane on opposite sides of the twigs. This gives hemlock trees that soft, horizontal, wispy, flat-branched ...

Identification Initially found in the southern tip of Maine, the woolly adelgid thrives in warm climates and has spread up the coast, affecting trees as far north as Acadia National Park.

"Situations like this demonstrate the importance of public awareness in our fight against invasive species." Officials say the insect extracts sap from hemlock trees, weakening the needles, shoots ...

Botanists at Harvard’s Arnold Arboretum discovered a new species of Eastern Asian hemlock tree with a natural resistance to a notorious invasive insect, according to a study published in Dec. 2017.