by Planet Friendly Pest Control | Nov 23, 2021 | Tree & Shrub Pests
What Is the Threat The Hemlock Woolly Adelgid (HWA) is an invasive, aphid-like insect that invades North American Hemlock trees. Invisible to the naked eye, it pierces the tree at the base of its needles and sucks the sap. This inhibits twig growth and can kill the...
