Hemlock Wooly Adelgid
Hemlock Wooly Adelgid (HWA) was initially found in the eastern US in the early 1950s. Since then, this pest has decimated both eastern and Carolina hemlocks in a large portion of their ranges. There have been a few HWA infestations found in Michigan, chiefly due to landscape trees that were brought into the state before a quarantine was established. HWA is a small, aphid-like insect that secretes a white wax that gives them the characteristic cotton appearance. They feed on the base of hemlock needles, eventually killing the tree’s needles, shoots and branches. |
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