Cull the deer, crush the ticks

Nova Scotia has a deer problem—and a tick problem that rides on its back. Blacklegged ticks, the vector for Lyme disease, have made this province the hardest hit in Canada. Many of us know someone — a neighbour, a coworker, a child — whose life has been upended by this disease.

The evidence points to a difficult conclusion: without culling deer populations in our communities, we cannot meaningfully crush the tick threat. Nova Scotia is ground zero The numbers are staggering. Nova Scotia recorded 2,788 lab-confirmed Lyme cases in 2025, up from 2,351 in 2024 and 2,057 in 2023.

Anaplasmosis cases jumped from 317 to 681 in a single year. This province has consistently had the highest incidence rates in the country. Behind those numbers are countless Nova Scotians who have dug embedded ticks from their own skin—or their children’s—and too many who now live with tremors, anxiety, vision problems, and fatigue that never fully lifts.

A 2015 peer-reviewed article based on a study from the IWK Health Centre documented 17 children with Lyme arthritis (a manifestation of Lyme disease). This is not a remote wilderness problem. It’s in our backyards, our daycares, our basements.

New threats: The meat allergy And it’s not just Lyme anymore. Alpha-gal syndrome—a tick-borne allergy to red meat and dairy—has arrived in Nova Scotia. A Pictou County woman was recently diagnosed after a suspected lone star tick bite in her garden.

She now carries an EpiPen and cannot eat meat or dairy. The lone star tick is expanding northward, and Nova Scotia does not track alpha-gal cases, meaning the true burden is unknown. The “Bambi” problem I get it.

There’s a mother deer with three young ones on our street, part of a greenbelt. Neighbours run to the front windows to photograph them. They’re beautiful.

The deer feel like neighbours themselves. But Bambi was a fictional deer in a forest with no cars, no subdivisions, and no ticks. The real Nova Scotia has too many deer, fragmented habitat, and a tick population exploding alongside them.

Those three fawns on your street are the reproductive engine for thousands of ticks. Clinging to a cartoon—or to the fantasy that feeding them is kindness—is not a management strategy. Overrun in our communities The data is unambiguous.

In Truro, deer pellet counts showed the urban population was 2.5 times higher than surrounding areas. In Yarmouth, a 2024 survey found an average of 60 pellet piles per transect within town limits—compared to just 11.2 across the entire management zone. Eighty percent of Yarmouth transects had counts of 30 or higher.

These are not pristine forests. These are our neighbourhoods. The mice connection, in brief The Lyme bacterium lives in white-footed mice, which infect the larval ticks that later transmit it to humans.

Deer don’t carry the bacteria themselves—but they are the adult ticks’ primary reproductive host. More deer means more ticks. More ticks means more opportunities for the bacteria to move from mice to people.

Why culling mice would backfire Culling white-footed mice might seem logical—they’re the reservoir, after all. But removing mice only forces ticks to redistribute onto other hosts like chipmunks and birds, which can actually increase Lyme risk. Worse, mice are a linchpin of forest health: experimental removal triggered tenfold to thirtyfold increases in gypsy moth egg masses the following year.

Kill the mice, and you get more Lyme and a forest out of balance. Why other tools fall short Translocation results in high mortality and simply moves the problem. Fertility control remains experimental; no contraceptive is legally available for deer in Canada.

Tick checks and education place the burden on individuals. Bait stations take years to achieve even 50% reduction. The tool that works is regulated hunting.

A healthier herd, not just fewer deer Would a cull benefit deer populations long-term? Yes—provided it is sustained. When deer are too numerous, they degrade the habitat they depend on.

At high densities, herds experience low fawn crops, low body weights, and severe winter die-offs. The survivors tend to be in better condition. The deer that remain are healthier.

Fewer deer means fewer crashes There’s another benefit that gets overlooked: safer roads. Between 1999 and 2003, an average of 2,079 white-tailed deer were killed annually on Nova Scotia highways—equivalent to about 6% of the estimated deer population and a 28% increment on top of the reported hunt.

Peak months are June to July and October to November when deer movement spikes. The human toll is real: a 42-year-old woman died in 2024 when her car hit a deer on Highway 104 and was then struck by a transport truck. A cull that reduces deer density in hotspot areas — particularly near settlement areas where hotspots cluster — will directly reduce these collisions.

A reason for hope One reason for hope: Acadia University in Wolfville has opened Canada’s first dedicated tick research centre, breeding native ticks for study and already developing a new, all-natural repellent that impairs ticks’ ability to locate hosts. The centre’s work on new control technologies and pathogen surveillance offers the kind of practical, made-in-Nova Scotia solutions this crisis demands.

The will is there In Truro, a managed bow hunt has operated since 2022. A record 88 deer were harvested in 2025, bringing the five-year total to approximately 238. Meat is donated to food banks and Mi’kmaq communities.

Colchester County residents voted 77% in favour of expanding the cull. The public support exists. The infrastructure exists.

Change the equation A cull is not a silver bullet. It must be paired with habitat management, public education, and continued tick surveillance. But it is the only intervention with a proven track record of suppressing tick populations at scale.

Nova Scotia needs a coordinated, science-based deer management strategy. That means setting target densities based on tick ecology, not hunter convenience or public discomfort. And it means accepting that coexistence with deer has limits when those deer are vectors for debilitating disease.

The ticks are winning. It is time to change the equation. Geoff Hurley is a retired environmental consultant living in Dartmouth, N.S.