Hemlocks are majestic. Towering, evergreen, and capable of living up to 800 years, they’ve stood like green sentinels through ...

Early impacts on trees infested with HWA include loss of needles and reduction to growth of new needles and branches. If left untreated, HWA infestations can result in hemlock tree death within 3-5 ...

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 ...

The weeds poison hemlock and wild parsnip are invasive to Ohio and toxic to humans. Here's what they look like and how to get ...