Some places have also become secondary old growth forests, meaning the forests were cut down at some point but have grown ...

Eastern hemlock trees are a vital foundation species in Pennsylvania forests, supporting the ecosystem and enhancing aesthetics. The hemlock woolly adelgid (HWA), an invasive insect, poses a ...

Photo showcasing insects that are killing eastern hemlock trees. New York’s forests are in trouble. Tiny, destructive insects are spreading fast, killing trees that have stood for hundreds of years.

A. 1965. Silvics of the forest trees of the United States. U.S. Department of Agriculture, Forest Service, Agriculture Handbook Number 271. Frelich, L. E. 1986. Natural disturbance frequencies in the ...

How, after all, could such old trees have survived the settlers ... Walking through woods like these, the kind of hemlock-northern hardwood forests that once thrived in the Appalachians from ...

(WOOD) — If you have hemlock trees on your property ... Infestations of invasive bug confirmed in Huron-Manistee National Forests The DNR says the earlier the treatment, the more successful ...

Forest health technicians with the Michigan DNR's Parks and Recreation Division detected two hemlock trees infested with hemlock woolly adelgid in Van Buren State Park. Samples were collected from ...

In Van Buren County, forest health technicians with the Michigan Department of Natural Resources (DNR) Parks and Recreation Division found two hemlock trees infested with invasive hemlock woolly ...