Blacklegged (deer) tick
Ixodes scapularis
- Identification
- Very small; nymphs are pinhead-sized. Reddish-brown with dark legs; the primary Lyme-disease vector.
- Lifecycle & behavior
- A two-year, multi-stage cycle on mice, deer, and other hosts; both nymphs (early summer) and adults (fall) can transmit disease.
- When it's active in Central NY
- Established throughout the Finger Lakes. Nymphs are active and easily missed in June–July; adults stay active through fall, even after frosts.
- Risk & damage
- Transmit Lyme disease, anaplasmosis, and babesiosis — a serious and rising regional health concern.
- Why DIY falls short
- Personal repellents help but don't reduce yard habitat; ticks persist in leaf litter and the lawn-woods edge.
- How we treat it
- Habitat-focused yard treatment of shaded leaf litter and tree lines, plus source-reduction guidance, run as a seasonal program.
Blacklegged tick, dog tick, or lone star tick?
This identification has real health consequences, so it is worth doing carefully. The blacklegged tick — commonly called the deer tick — is small, with an adult female showing a solid dark brown-black shield behind the head and an orange-red body, and legs that are distinctly dark. It has no white markings. Nymphs are roughly poppy-seed sized and are responsible for a large share of Lyme transmission precisely because they are so easily missed.
American dog ticks are noticeably larger with mottled white or silvery patterning on the shield. Lone star tick females have a single conspicuous white dot in the center of the back. Neither of those transmits Lyme.
Blacklegged ticks in Central New York
The Finger Lakes and Southern Tier sit in a region with substantial Lyme disease incidence, and the blacklegged tick is the vector. Adults are active in spring and again in fall, and will move on any day above freezing — including mild winter days, which surprises people. The nymphs, active in late spring and summer, account for much of the transmission because they are so small.
Exposure concentrates at edges rather than in open lawn: the transition where mown grass meets tall grass, brush, or woodland, and leaf litter under shrubs. That is why maintaining that boundary and treating harborage areas makes a measurable difference, and why properties backing onto woods in Danby, Newfield, Forest Home, or the Danby Road corridor carry more risk than a mown suburban lot.
Prompt removal matters. Transmission generally requires a substantially attached period, so daily checks after time outdoors are among the most effective precautions available.
Dealing with blacklegged (deer) tick?
Our mosquitoes & ticks handles it — guaranteed, family-owned, and local.
Blacklegged (deer) tick — common questions
How do I tell a deer tick from a dog tick?
Size and markings. Blacklegged (deer) ticks are smaller, with dark legs, a solid dark shield and orange-red body on adult females, and no white markings. American dog ticks are larger with mottled white or silvery patterning. Lone star ticks have a single white dot. Only the blacklegged tick transmits Lyme.
Can a treatment make my property tick-free?
No, and anyone promising that is overselling. Treatment of harborage areas plus maintaining the boundary where lawn meets tall grass and woodland reduces exposure meaningfully around the house. It does not eliminate ticks from a wooded property, so personal checks after time outdoors still matter.
Are ticks only a summer problem here?
No. Adult blacklegged ticks are active in spring and fall and will move on any day above freezing, including mild winter days. The nymphs — the stage responsible for much of the transmission — are active in late spring and summer and are small enough to be missed easily.