We noticed over the weekend that several more of our hemlocks are doing the same thing.
About 30-35 years ago we planted a small Hemlock on the edge of our yard and it has grown into a beautiful tree. We just noticed that several areas have yellow and/or brown areas on the needles. We did not notice any woolly adelgid in the spring, but it is possible. We would like to save this tree. Research on the web we determined that if it is woolly agelgid, the only treatment available is Dinotefuran. Please review the photos and advise us what to do to preserve this beauty.
Geauga County Ohio