07/31/2026
📍Seeking Solutions: Part 1 - Meet the Winter Tick
Are we asking the right questions that could change the conversation about protecting Maine's moose from winter ticks?
The Maine Moose Coalition recently had the opportunity to meet with Dr. Cheryl Frank Sullivan, Research Assistant Professor in the College of Agriculture and Life Sciences at the University of Vermont. She is an entomologist who specializes in pest management and has a particular interest in tick ecology and management solutions. Some of her work has concentrated specifically on winter ticks and their impact on moose populations.
Winter ticks are commonly referred to as "moose ticks" because they are a one-host tick that often relies on moose as its preferred host. Their one-year life cycle begins in late summer and early fall when newly hatched larvae attach to a host. Throughout the winter, they remain on the same animal, molting first into nymphs and then into adults, while continuing to feed on their host's blood during each stage. 🤮
In late winter and early spring, male winter ticks seek out females on their host to mate. After mating, each fertilized female takes one final blood meal. Once fully engorged, to about the size of a grape, she drops to the ground where she lays approximately 4,000 eggs before dying. The males remain on the host and die shortly thereafter.
The winter tick life cycle repeats year after year, and the resulting tick burdens have had an impact on Maine's moose herd as well as other moose populations across the Northeast. High winter tick loads weaken moose through significant blood loss, increased rubbing that leads to hair loss, reduced body and health conditions, and in some cases death. 😔
What else did we learn from this conversation? What can be done to reduce the impact of winter ticks? And... How can you help? ❓
We'll answer those questions in the next edition of the Moosehead Lakeshore Journal, available on August 6, 2026 and follow-up on social media as well.
In the meantime, visit mainemoosecoalition.org 🫎 and sign up to join our mission. We're building a growing community of passionate supporters, and we'll be counting on plenty of Moose Maniacs to help make a difference in the months ahead!
📷 Photo: The cow moose pictured has a visible cluster of winter ticks on her neck and has rubbed away patches of her coat in an attempt to remove them. Despite the infestation, she experienced no major health complications and gave birth to a healthy calf approximately 2½ months later.