Pest pressure in Austin isn’t random. It follows seasonal patterns shaped by temperature, soil moisture, and the lifecycles of the species present in central Texas. Knowing the calendar lets you anticipate rather than react.
January – February (winter)
The slowest pest months in Austin. Scorpions, ants, and most insects are inactive. Rodents are most active — they’re looking for warm structures to overwinter. What to watch: attic and wall rodent activity, German cockroaches in heated commercial spaces, occasional active termite tubes if winter is mild.
March (spring transition)
Subterranean termite swarm season begins. Reticulitermes flavipes alates emerge during the first warm, humid days following rain. This is when most homeowners discover termite infestations. If you see what looks like flying ants near your foundation in March, get an inspection — the colony has been feeding for years before swarmers appear.
General pest activity ramps up. First scorpion sightings of the year in west Austin (rare but possible). Mosquitoes begin breeding in any standing water that survived winter.
April
Termite swarm season peaks. Ant trails establish in kitchens and around water sources. Wasps begin building. Mosquito pressure noticeable across central Austin. Carpenter ants active in older trees.
May
Scorpion active season begins in earnest. May through October is when west Austin homeowners deal with scorpions in living spaces. Mosquito pressure builds across all neighborhoods. Tick activity peaks in wildland-adjacent properties.
June – July (summer)
Peak pest season. Heavy ant pressure (fire ants in lawns, carpenter ants in trees, sugar ants in kitchens). Wasp populations established and aggressive. Mosquito pressure highest in creek-adjacent neighborhoods. Scorpion activity year-peak. Cockroach populations build. Bed bug call volume rises (travel season correlation). Brown recluse activity in less-disturbed structures.
August
Continued peak pressure. Drought conditions can push pests indoors seeking water. What to watch: rodents in attics (drought drives wildlife toward irrigated yards), scorpions moving into homes seeking moisture, fire ants relocating mounds.
September
Cricket invasion. The annual fall cricket swarm hits central Texas in late September and early October. Acheta domesticus and related species emerge in massive numbers, drawn to lights. Homes and businesses with exterior lighting near vegetation see the heaviest invasions.
October
Continued cricket pressure. Spider activity rises (males searching for mates). Rodents begin pre-winter migration toward structures. First fall ant trails as colonies stockpile for winter.
November
Cooling temperatures push insects toward dormancy. Rodent activity peaks — populations are large from summer breeding and they’re seeking winter shelter. Roof rats establishing in attics. House mice moving into wall voids and kitchens.
December
The slow season. Most insect activity ceases. Rodent activity continues. Inactive termite season (no swarms but feeding continues underground if temperatures allow). Carpenter ant activity occasional in interior locations.
What this means for your service schedule
Quarterly general pest service in Austin is typically scheduled in late February (catch the spring ramp), late May (peak season begins), late August (drought response), and late November (rodent season). Adjustments for specific properties: monthly mosquito May–October on high-pressure properties, additional service in March for termite-prone older homes, additional treatment in September for high-cricket-pressure properties.