Controlling Hemlock Woolly Adelgid

Do your hemlocks have a grayish appearance? Are they dropping needles, especially on the interior of the branches? Then, you may have an infestation of hemlock woolly adelgid. The hemlock woolly adelgid (Adelges tsugae), native to Asia, is a small, aphidlike insect that threatens tree health and sustainability of the Eastern hemlock and Carolina hemlock […]