Hemlock Woolly Adelgid Survey – RTPI and JCC

Every winter, we conduct Hemlock Woolly Adelgid (HWA) surveys across the region. You can help survey hemlock trees at the Cassadaga Lakes Nature Park preserve on February 21, or Roger Tory Peterson Institute and SUNY JCC on March 7 for the invasive Hemlock Woolly Adelgid.

To volunteer, please visit chautauquawatershed.org/events and RSVP for either survey.

HWA is most visible in winter. In the coldest months, the aphids go dormant and form cotton-like protective balls at the bases of hemlock needles, making it easy to observe and diagnose. This dormant period also makes it much less likely for surveyors to accidentally spread HWA from tree to tree by physically touching multiple hemlocks in an area during a survey.