LYONS, N.Y. (WROC) — The Hemlock Woolly Adelgid. Or HWA, is a very small insect that has been killing North American hemlock forests in the 1950s. It has been moving slowly northward, adopting ...

Now through March 15, New York residents can look for hemlock trees and check for the characteristic white egg masses of hemlock woolly adelgid on the underside of the trees’ twigs.

The Leucotaraxis Silver Flies, which will be released in the morning, are considered a "biocontrol" solution to combat the Hemlock Woolly Adelgid (HWA).

Hemlock trees killed by hemlock woolly adelgid in Great Smoky Mountains National Park, North Carolina.

(FOX 2) - The invasive pest that feeds on Michigan's native hemlock trees has been found in a ninth Michigan county, further threatening the state's forests.

A Connecticut scientist has been releasing tiny Japanese beetles for nearly 30 years to combat the hemlock woolly adelgid.

Three locations in Park Township have tested positive for the hemlock woolly adelgid (HWA), an invasive pest that sucks the sap from young hemlock twigs, causing the needles to dry out, and ...

Hemlock woolly adelgid (Conn. Agricultural Experiment Station) (910 Media Group) - If you see this insect, report it immediately BENZIE COUNTY — The National Park Service says Old Indian Trail ...

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.

Video of Michigan's DNR expert Drew Rayner talking about the need for the massive effort that has been mobilized to save eastern hemlock trees from HWA or Hemlock Woolly Adelgid.

Antrim County becomes latest to be found with hemlock woolly agelid. Infested trees turn gray-green and, without treatment, can die in four to 10 years.