Michigan has around 170 million hemlock trees, representing a significant part of the state's forestry. ... An infestation takes on the appearance of white egg sacs on the underside of branches.

Without treatment, trees infested with hemlock woolly adelgid are likely to die within four to 10 years. Weakened trees on a home landscape could spell disaster during high winds or storms, ...

The beetles are meant to target hemlock woolly adelgids. Woolly adelgids deposit their egg sacs on hemlock needles, leaving strings of white that resemble fake snow on a Christmas tree.

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

GRAND RAPIDS, Mich. (WOOD) — The state of Michigan has approved $3.6 million in grants to help fund projects to ward off invasive species, including hydrilla and the hemlock woolly adelgid.

The fungus does not damage chestnut trees in Asia, since the two species evolved there together, but the American chestnut was different. “It just started killing them wholesale,” Carlson said.

Michigan’s Department of Natural Resources and Department of Agriculture and Rural Development are encouraging people who have eastern hemlock trees on their property to search for signs of the ...

GRAND HAVEN, MI – Hemlock trees – those beautiful feathery evergreens – are dying in alarming numbers along West Michigan’s coast. But you can save them, one at a time. An “Adopt-a ...

Michigan agricultural officials have spotted another infestation of a small bug that can affect the growth of hemlock trees and potentially kill them within 10 years. The Michigan Department of ...

Dave Powell/USDA Forest Service (retired) / Bugwood.org. All spruce trees have sharp-pointed needles that are often 4-sided or diamond-shaped in cross-section and have four whitish striped lines.

Hemlock trees infested with the HWA can be identified by: White sacs (looks like small wool) at the base of the tree’s needles on younger twigs; Thinning and change of colour ... Increasing your ...

“Our goal is to protect the 170 million hemlock trees that live in Michigan’s forests,” said Mike Philip, director of MDARD’s Pesticide and Plant Pest Management Division.