January – March: Late Winter and Early Spring
Termite swarmers appear as early as February in warm spells. Overwintering pests — rodents, roaches, and spiders — remain active in structure interiors. Perimeter treatment in late February or March sets a barrier before spring pest pressure peaks.
April – June: Spring and Early Summer
Fire ant mounds peak in April and May. Mosquito season begins in earnest by April. Scorpions become more active as temperatures rise. Wasps and hornets begin building nests. This is the highest-pressure period for most Central Texas pest categories.
July – September: Summer
Mosquitoes peak in July and August. Crickets move toward structures in August. Scorpions remain active and may move indoors seeking relief from heat. Rodents begin exploratory movement toward structures as outdoor conditions become extreme.
October – December: Fall and Early Winter
Rodents begin entering structures in October and November as temperatures drop. Fire ant activity resumes after the summer slowdown. Overwintering pests settle in. Fall perimeter treatment helps prevent indoor winter infestations.
Frequently Asked Questions
What is the worst pest season in Central Texas?
April through June is typically the peak of pest pressure — fire ants, mosquitoes, scorpions, and termite swarmers are all active simultaneously.
How often should I schedule pest service?
Quarterly service covers all four seasons and maintains a consistent barrier as pest pressure cycles through the year.
When do mosquitoes start in Austin?
Mosquitoes become active as early as late March and typically peak in July and August.
Local Help in Central Texas
Vector 1 Pest Control provides year-round pest control for Austin, Round Rock, Georgetown, and surrounding Central Texas communities. Call (512) 652-6300.