East Texas pest pressure follows a reliable annual rhythm: termite swarms and the ant surge run March through May, mosquito season stretches roughly March through November, roof rats invade attics from late September through December, and kitchen roaches plus rodents own the winter indoors.
Why does East Texas have a pest calendar at all?
Deep East Texas sits in a humid subtropical climate — hot wet summers, short mild winters, and a long growing season across the Piney Woods. That climate means pests never fully stop here; they rotate. Each month has a predictable headline pest, and each headline pest has a treatment window where acting early does the most work. This calendar maps the year so you can stay ahead of it instead of chasing it.
What's active each month in East Texas?
January — Rodents in attics, German cockroaches, Pantry pests
Cold snaps keep rodents and kitchen roaches indoors — the quiet month outside is the loud month in the walls. See: Rodent control.
February — Rodents, Early ant scouts, Overwintering wasps
Mild spells wake ant colonies early. February is the cheapest month to seal entry points before spring hits. See: Exclusion checklist.
March — Termite swarms begin, Spring ant surge, First mosquitoes
Warm rain starts native termite swarms and the spring ant surge. The mid-March treatment window opens now. See: Spring ant surge guide.
April — Peak termite swarms, Fire ant mounds, Carpenter ant flights
Peak swarm month — discarded wings on a window sill in April deserve a same-week termite inspection. See: Termite treatment.
May — Formosan termite swarms, Mosquitoes ramp up, Fire ants peak
Formosan termites swarm on humid late-spring evenings, and mosquito season shifts into full gear. See: Formosan termite guide.
June — Mosquitoes, Fire ants, Outdoor roaches
Backyard season meets mosquito season. Recurring yard treatment earns its keep from here through fall. See: Mosquito control.
July — Roaches move indoors, Mosquitoes, Wasps & yellowjackets
Peak heat pushes big outdoor roaches inside looking for water — bathrooms and kitchens see the traffic. See: Home pest control.
August — Wasp nests at max size, Mosquitoes, Fleas & ticks
Wasp and yellowjacket nests hit their biggest, boldest size of the year — don't knock one down dry. See: Home pest control.
September — Fall rodent invasion begins, Mosquitoes still strong, Fire ants re-mound
The first cool nights send roof rats scouting attics. September exclusion beats December trapping. See: Fall rodent guide.
October — Rodent entry peaks, Spiders visible, Fire ant fall window
Peak rodent-entry month — and the fall window to knock fire ant colonies down before they overwinter. See: Rodent control.
November — Rodents indoors, Roaches shift indoors, Last mosquitoes
Everything that wants to overwinter in your house is moving now. Seal, monitor, and treat the kitchen zone. See: Winter roach guide.
December — Rodents, German cockroaches, Pantry pests
Holiday cooking feeds kitchen pests. Watch pantry shelves and under-sink zones; keep bait placements fresh. See: Kitchen pest guide.
What do people get wrong about pest seasonality?
- "Winter means no pests." Outdoor pressure drops; indoor pressure rises. Rodents, German cockroaches and pantry pests do their best work in the warm months of your house — December through February.
- Treating at the peak instead of the window. Mosquito control started in June fights an established population; started in March, it suppresses the first generations. Same logic for the IPM approach to ants, termites and rodents.
- Assuming one treatment covers the year. East Texas sun and rain degrade barrier treatments; the calendar is exactly why recurring service outperforms one-time visits here.
How does Spot On use this calendar?
Our recurring plans are built around it: the spring visit leans on ant and termite-swarm season, summer visits carry mosquito and wasp pressure, the fall visit front-loads rodent exclusion, and winter visits focus on the kitchen zone and monitoring. It's the same reason our technicians walk your yard differently in March than in October. Spot On is family-owned and serves Lufkin, Nacogdoches and all of Deep East Texas under a 100% satisfaction guarantee.
What should you do next?
Find today's month above, and if its headline pest sounds familiar, request a quote — we'll treat inside the window rather than after it. For deeper seasonal reads, see the mosquito season guide, the spring ant surge and the fall rodent invasion.
Quick questions
When is mosquito season in East Texas?
Roughly March through November. Activity starts with the first warm spring rains, peaks through the summer, and lingers until the first real cool-downs in late fall. See the full mosquito season guide.
When do termites swarm in Lufkin and Nacogdoches?
Native subterranean termites swarm on warm, rainy days from about March through May, with April the classic peak. Invasive Formosan termites swarm later — on humid evenings in late spring, often around dusk near lights.
Do I still need pest control in winter?
Yes — the pressure just moves indoors. Rodents, German cockroaches and pantry pests peak inside East Texas homes from December through February, and winter is also the ideal season for exclusion work before spring wakes everything back up.
Reviewed by the Spot On Pest Control team
Written and reviewed by the licensed, TDA-regulated technicians who treat homes across Lufkin, Nacogdoches and Deep East Texas every day — applied responsibly, and backed by our 100% satisfaction guarantee.
