Why Dover Is High-Risk
Dover's Landscape Is Built for Ticks
Dover sits at the confluence of three tick risk factors that make it one of the highest-exposure cities in Strafford County: wooded suburban lots, proximity to the Cocheco River and its marshy floodplain, and heavy white-tailed deer pressure through established neighborhoods.
Subdivisions off Sixth Street, Tolend Road, and Knox Marsh Road back directly into wooded buffers that tick-carrying deer traverse daily. Dover's older tree-lined neighborhoods have untreated stone walls and leaf litter that create ideal tick overwintering habitat. The city's proximity to Great Bay adds coastal marsh influence — a secondary reservoir for tick populations.
- Cocheco River floodplain and wetlands create dense adjacent tick habitat
- Wooded lot buffers in Dover subdivisions feed directly into backyard tick zones
- Stone walls throughout older Dover neighborhoods are rodent corridors — rodents are the primary host for Lyme-carrying nymph ticks
- Heavy deer pressure from Garrison Hill and wooded conservation areas deposits adult ticks across the city
- NH tick season runs April through October — Dover's humid river-adjacent climate extends active season
- Nymph ticks (May–June) are poppy-seed sized and hardest to detect — peak exposure in Dover's yard season
