Pest activity in the New York metro area follows seasonal patterns — and knowing what's coming lets you stay ahead of infestations before they start. Here's your month-by-month guide for Nassau, Suffolk, Westchester, The Bronx, and Rockland County.
One of the most common mistakes homeowners make is treating pest control as a reactive problem — calling for help after an infestation is already established. The reality is that every pest problem in the New York metro area follows a predictable seasonal cycle. Mice don't appear randomly in October; they've been scouting your home since August. Termite swarmers in April aren't a new infestation; the colony has been active for years. Yellow jackets aren't aggressive in September because they've changed; their colony has grown to 5,000 workers and they're defending a resource.
Knowing what's coming — and when — lets you stay ahead. Here's a month-by-month breakdown for homeowners across Nassau County, Suffolk County, Westchester County, The Bronx, and Rockland County.
May and June are the highest-risk months for tick exposure across the entire New York metro area. Deer tick nymphs — roughly the size of a poppy seed, nearly impossible to see — are at peak activity. Nymphal ticks transmit Lyme disease, anaplasmosis, and babesiosis at the highest rates of any tick life stage. This is the most important treatment window for homeowners with wooded lots or properties bordering parkland in Westchester, Rockland, and northern Suffolk County.
Carpenter ants are actively foraging through May and June, establishing satellite colonies in moisture-damaged wood throughout homes. Yellow jackets and paper wasps are building new nests — small enough at this stage to treat easily, before colonies grow into the thousands.
Fall is the most consequential pest season in the New York metro area — and the most misunderstood. Homeowners often wait until they see mice inside before acting, but by October, mice have typically been scouting entry points since August. The exclusion window — when sealing entry points is most effective — is September, before mass entry events occur.
Pest activity doesn't stop in winter — it moves indoors. Mice, cockroaches, and overwintering insects remain active in heated spaces year-round. Winter is actually an ideal time for comprehensive exclusion work: pests are easier to track (visible trails in insulation, concentrated droppings), and sealing entry points now means you're ahead of next year's fall entry season.
Termite colonies are less visible in winter but don't go dormant — they move deeper into soil and wood, often going undetected until spring swarmers emerge. A winter interior inspection is worthwhile for any home over 20 years old or with a previous termite history.
The Bugs Stop Here serves homeowners across all five of its service counties year-round — Nassau, Suffolk, Westchester, The Bronx, and Rockland. A quarterly service plan addresses each season's specific threats before they escalate. Contact us for a free inspection and we'll build a plan around your property's specific risk profile.
Pest activity in New York is year-round, but peaks at different times for different pests. Ticks are most dangerous in May–June (nymphs) and again in October–November (adults). Mosquitoes peak in July–August. Mice are most likely to enter homes in September–October. Termite swarmers are most visible in March–May. Cockroaches are most active in summer but present year-round.
The most effective approach is preventive, not reactive. A spring treatment (April–May) addresses termites, ants, and ticks. A summer service targets mosquitoes and cockroaches. A fall visit focuses on rodent exclusion and stink bug prevention. Winter is ideal for comprehensive exclusion work before next season.
Mice begin scouting entry points in late August as temperatures start dropping. Mass entry events typically occur in mid-September through early November across the New York metro area. The exclusion window — when sealing entry points is most effective — is September, before mice establish interior populations.
Deer ticks (blacklegged ticks) can be active any time temperatures are above 35°F — including during mild winter days in December and January. They do not die in winter; they simply become less active. In counties like Westchester and Rockland with significant deer populations, tick exposure is possible in every month of the year.
Suffolk County homeowners face a unique mix of pests — from deer ticks in wooded backyards to cockroaches in dense western suburbs. Here's your complete guide to keeping your home pest-free year-round.
Read More →From the saltwater marshes of the South Shore to the dense suburbs of Hempstead and Levittown, Nassau County homes face year-round pest pressure. Here's what you need to know.
Read More →Westchester County's wooded landscape, older housing stock, and high deer population create year-round pest pressure. Here's what homeowners in Scarsdale, Yonkers, Tarrytown, and beyond need to know.
Read More →Your family deserves a home without pests. Get a free estimate from your local experts — family-friendly treatments, honest pricing, and we stand behind our work.