Year-round Average winter low about 45.6°F, so pests stay active (NOAA normals)Formosan termites Swarm at night around lights in late spring (NATS)Fire ants Bait the yard, then treat mounds (USDA APHIS)Roaches German roaches usually need bait and follow-up, not a single spray (UC IPM)Bed bugs They travel in luggage and used furniture (EPA)Rodents Seal entry gaps, trap, then clean up (CDC)Pest companies: rent or own this local guide. Month-to-month, no contract.Year-round Average winter low about 45.6°F, so pests stay active (NOAA normals)Formosan termites Swarm at night around lights in late spring (NATS)Fire ants Bait the yard, then treat mounds (USDA APHIS)Roaches German roaches usually need bait and follow-up, not a single spray (UC IPM)Bed bugs They travel in luggage and used furniture (EPA)Rodents Seal entry gaps, trap, then clean up (CDC)Pest companies: rent or own this local guide. Month-to-month, no contract.

Termites in Houston

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The Formosan subterranean termite has a long Houston history. The North American Termite Survey says that although it arrived in the U.S. after World War II, it was not positively identified until it was collected in Houston in 1966. In Texas, Formosan swarm season runs late May to early June. Formosan swarmers fly at night and head for lights, while native subterranean termites swarm in daylight, usually starting in February or March.

What treatment involves

An inspection for mud tubes, damaged wood and swarmers.
Liquid soil termiticide around the foundation, or a bait-station system.
Fixing moisture problems that draw termites.

Buying or selling a home? Ask for a wood-destroying insect (WDI) inspection.

Sources: North American Termite Survey: swarm seasons · UF/IFAS: Formosan subterranean termite

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