Are There Ticks in New Zealand? Species, Risks, and Prevention

If you’ve ever brushed against a fern on a tramp in the Coromandel and found a tiny black dot latched onto your skin, you’ve met one of New Zealand’s tick species. Nine species are recorded here, according to a 2011 checklist by Heath et al. published in Zootaxa (a peer-reviewed taxonomic journal). So yes, ticks are present in New Zealand — but the news about Lyme disease might calm your nerves while raising other concerns for pets and outdoor visitors.

Tick species in New Zealand: 9 ·
Introduced species: 1 (Haemaphysalis longicornis) ·
Geographic range: North Island, Marlborough, Tasman, West Coast

Five key facts at a glance, drawn from government and peer-reviewed sources.

The pattern: native ticks are host-specific to birds and animals, while the introduced cattle tick is the one most likely to affect pets and people.

Do ticks in NZ carry Lyme disease?

The short answer is no — at least, no confirmed cases of locally acquired Lyme disease have ever been recorded in New Zealand. The endemic tick species are host-specific and do not carry the Borrelia bacteria that cause Lyme. Manaaki Whenua – Landcare Research (New Zealand’s crown research institute for land environments) notes that the introduced cattle tick, Haemaphysalis longicornis, is occasionally found on dogs and even humans, but its potential to transmit Lyme or other diseases in the New Zealand environment remains unstudied.

What is Lyme disease?

• Lyme disease is caused by the bacterium Borrelia burgdorferi and transmitted through the bite of infected blacklegged ticks (Ixodes species) in the Northern Hemisphere.
• Symptoms include fever, headache, fatigue, and a characteristic skin rash called erythema migrans.
• If left untreated, the infection can spread to joints, the heart, and the nervous system.

The implication: New Zealand’s tick fauna lacks the vector species known to carry Lyme, so the risk from native ticks is negligible.

Evidence from New Zealand tick studies

• The 2011 checklist by Heath et al. (Zootaxa, a peer-reviewed taxonomic journal) confirmed that all ten breeding species (one later described) are either endemic or self-introduced via birds.
• None of these species are known vectors for Borrelia in the field.
• Petcover NZ (a pet insurance provider in the New Zealand market) states that the main problematic tick is Haemaphysalis longicornis, but does not list Lyme as a concern for pets in NZ.

The catch: while native ticks pose no Lyme risk, imported exotic ticks carried on travellers or cargo could theoretically introduce the disease.

Comparison with overseas ticks

Four ticks, one stark contrast: NZ ticks lack Lyme vectors that are common in North America and Europe.

Where are ticks in New Zealand?

Ticks are more common than many people realise, especially in areas with long grass and dense vegetation.

North Island regions

• Widespread: ticks are found “right through the North Island,” according to Virbac New Zealand (a veterinary pharmaceutical company).
• Higher densities in humid, forested areas such as Northland, Waikato, and the Bay of Plenty.

South Island regions

• Present in Marlborough, Tasman, and parts of the West Coast (Petcover NZ)
• Absent from most of Otago and Southland, likely due to drier conditions.

Urban versus rural areas

• More common in rural settings with livestock, but can be found in urban parks and gardens where native birds and possums roam.
• Petcover NZ recommends reducing access by native animals to backyards in tick-prone areas.

The pattern: wherever there is tall grass, moisture, and animal hosts, ticks can thrive — and that includes many urban fringes.

What are the odds a tick gives you Lyme disease?

Essentially zero for ticks acquired in New Zealand. The Health New Zealand (national health authority) does not include Lyme disease in its standard tick-bite guidance, and no surveillance data shows its presence.

Lyme disease risk in New Zealand

• No confirmed autochthonous (locally acquired) cases of Lyme disease ever reported.
• All reported cases are linked to travel to endemic regions.

Comparison with overseas risk

• In the United States, the CDC estimates ~476,000 people are diagnosed and treated for Lyme disease annually.
• In parts of Europe, up to 20% of Ixodes ricinus ticks carry Borrelia.
• New Zealand’s tick ecology provides a natural barrier.

Other tick-borne diseases in NZ

• No endemic tick-borne diseases have been confirmed in humans.
• In dogs, the main concern is tick paralysis, caused by the introduced cattle tick (Petcover NZ).
• Exotic ticks carried on imported animals could introduce pathogens, but strict biosecurity measures are in place.

The trade-off: locals have a very low disease risk from ticks, but that can change if a vector-carrying exotic tick establishes itself.

What’s the worst month for ticks?

Official sources do not name a single worst month, but patterns emerge from seasonal data.

Seasonal activity patterns

• Tick activity is highest in warmer months: spring through autumn (September to April) according to Petcover NZ.
• In warmer northern areas, ticks may be present for most of the year.

Peak months for tick encounters

• Based on overseas climate analogues, November to February (late spring to midsummer) likely see highest tick questing activity.
• No New Zealand-specific monthly breakdown exists in published literature.

Weather factors

• Humidity and temperature drive tick survival; ticks desiccate quickly in dry air.
• Wetter regions (West Coast, Northland) support longer active seasons.

The catch: without systematic surveillance, the exact peak is speculative — but planning for spring-to-autumn activity is the safest bet.

What smell do ticks hate the most?

No NZ-specific studies rank repellent scents, but general tick repellent principles apply.

Repellents that deter ticks

• DEET (N,N-Diethyl-meta-toluamide) is the most widely recommended active ingredient for personal protection against ticks (Health New Zealand guidance).
• Picaridin and Oil of Lemon Eucalyptus (OLE) are also effective.

Natural versus chemical options

• Some natural oils (citronella, lavender, tea tree) are marketed as repellents but lack robust efficacy data against NZ ticks.
• Petcover NZ warns against using essential oils on ticks already attached, as they may cause regurgitation.

Effectiveness in NZ conditions

• DEET-based products are available locally and are considered the gold standard.
• Permethrin-treated clothing provides long-lasting protection and is used by trampers and hunters.

Why this matters: the best defence in the outdoors is a combination of repellent, clothing coverage, and a thorough tick check at day’s end.

Confirmed facts vs. what remains unclear

Expert perspectives on New Zealand ticks

“Aotearoa New Zealand has endemic ticks that are host-specific and do not carry Lyme disease.”

— Health New Zealand (healthnz.govt.nz), national health authority

“Nine species of tick are present in New Zealand, with the introduced cattle tick being the one most likely to affect dogs and humans.”

— SMSL (smsl.co.nz), pest identification specialists

“Geographically, ticks are found right through the North Island and in parts of the northern South Island.”

— Virbac New Zealand (nz.virbac.com), veterinary pharmaceutical company

The consistency across these sources reinforces the key message: ticks are present but Lyme disease is not a local risk — though vigilance for bites remains important.

For outdoor visitors and pet owners in New Zealand, the choice is clear: enjoy the bush without fear of Lyme, but adopt simple prevention habits like using DEET repellent, checking for ticks after walks, and removing any ticks properly with a removal tool. Ignoring the risk of tick paralysis or secondary infection would be the real mistake.

While ticks do exist in New Zealand, it’s helpful to know what ticks look like to recognize them accurately.

Frequently Asked Questions