This guide works differently than most pest control articles. Most tell you what to do once you spot a problem.
This one is a calendar. It maps the best month to act, before you see anything at all.
If ants are trailing across your counter, or you heard scratching in the attic, that's a different question. Our guide on when to call an exterminator covers those warning signs.
This article is for planning ahead of a problem. It is not about reacting to one you already have.
The Westchester Pest Calendar at a Glance
Pest activity here follows a predictable seasonal pattern. Each pest has a window when treatment works best.
Ants become active as soil temperatures warm in early spring. That's when colonies resume foraging and start showing up indoors.
Ticks and mosquitoes peak from May through June. Both stay a real concern into August, depending on rainfall and humidity.
Termite swarming season typically runs March through May. That's when a mature colony sends out winged reproductives to start new colonies nearby.
Spotted lanternfly egg masses appear each fall. They overwinter on tree bark, fences, and siding until they hatch the following spring.
Rodents push indoors as fall turns to winter. Falling temperatures send mice and rats looking for shelter and food inside walls and basements.
What Should I Prioritize This Month?
Pick a month. See the top priorities Westchester homeowners should focus on.
Why Waiting for a Visible Problem Costs More
Reactive pest control almost always costs more. Waiting for a visible problem means the population has already grown past the easy-to-treat stage.
A termite swarm in your yard means a colony has already matured. Treating in March, ahead of swarming season, reaches a colony while it's still small.
The same logic applies to rodents. Sealing entry points in September stops the problem before it starts. Waiting until you hear scratching means dealing with an active nest.
This is the core idea behind IPM: acting on the calendar, not just on symptoms. Reactive treatment can still work, but it usually needs more visits to catch up.
Seasonal Pest Planning · Scarsdale & Westchester
The right month to call is almost always earlier than you think.
Pristine Pest connects Westchester homeowners with licensed providers who build a full treatment calendar, not a one-time fix.
Call (877) 938-6799Building an Annual Service Calendar
A single visit rarely covers a full year of pest pressure. Most Westchester homes need a handful of touchpoints spaced around the seasons above.
- Early spring: Termite swarming season and early ant emergence.
- Late spring to early summer: Tick and mosquito season ramps up.
- Late summer: Stinging insects and lanternfly egg-laying activity.
- Fall: Rodent exclusion before the winter push indoors.
Exact timing shifts a little from year to year with weather. A provider tracking regional pest data can adjust the calendar to that year's conditions.
The goal isn't more visits for their own sake. It's matching each visit to the window when that specific pest is easiest to stop.
For a broader look at scheduling, see our guide on how often to schedule pest control service. Our exterminator page covers what a full seasonal program includes.
Frequently Asked Questions
What is the single best month to start a pest control program?
Late winter to early spring, February or March, is the best starting point for most homes. It puts protection in place before ants emerge and swarming season begins.
Is one visit a year ever enough?
For some newer, well sealed homes, twice a year can work. Older homes near wooded lots usually need three to four visits to cover the full calendar.
How do I plan a schedule around a specific pest problem, like ticks or termites?
Start with that pest's active season and work backward. For ticks, treatment should begin in April or May, before nymphs become active. For termites, book an inspection before March, while a colony is still easiest to treat.
What happens if I start mid-season instead of following the calendar?
Starting mid-season still helps. The first visit addresses whatever pest is active right now. From there, the provider builds the rest of your calendar around that start date.