We’ve been talking a lot about hemlocks here at the Catskill Center this past year. They’re an iconic part of the Catskills, whether they are providing ideal trout stream habitat, stabilizing steep slopes, or just perfectly framing an aesthetic waterfall getaway. Unfortunately, hemlocks in the Catskills (and elsewhere along the East coast) have been struggling to overcome an attack by an invasive insect: the hemlock woolly adelgid.