Termite Swarm Season in Tampa Bay: A Homeowner's Guide

In Florida, termite swarms are most visible from about March to June, according to UF/IFAS. Asian subterranean termites swarm at dusk in early spring. Formosan subterranean termites usually swarm after sunset from about April to June, peaking in May. Drywood termites also swarm in spring. Winged termites indoors are a reason to schedule an inspection.

When termites swarm in Florida

UF/IFAS scientists describe Florida termite activity as most visible from March to June. Asian subterranean termites often swarm in early spring at dusk. Formosan subterranean termites usually swarm after sunset from early April to late June, with peak flights often in May (see UF/IFAS EDIS publication IN278). Swarmers are drawn to lights.

Drywood vs. subterranean termites

Drywood termites

Drywood termites live inside a piece of wood and push out droppings (frass) that can be seen year-round. Colonies stay in wood rather than nesting in soil.

Subterranean termites

Subterranean termites need moisture and typically nest in soil. UF/IFAS notes that colonies can become very large and attack structures from the ground up. Asian and Formosan subterranean termites are important species in parts of Florida.

Termite or flying ant?

Winged termites (swarmers) have straight antennae and wings of equal length; winged ants have elbowed antennae and wings of uneven length. Body shape also differs. Take a clear photo or keep a few specimens in a sealed bag for the inspector rather than guessing.

What to do if swarmers appear indoors

Do not panic-spray before an inspection. Note where the swarmers came from, collect a few in a sealed bag, and schedule an inspection with a licensed pest control company. UF/IFAS notes that a swarm indoors can signal an infestation.

Reduce the risk around your home

Fix plumbing and roof leaks, keep mulch and wood away from the foundation, and dim or turn off unnecessary exterior lights at night during swarm season, following UF/IFAS moisture and lighting guidance.

Hiring a pest control company in Florida

Pest control businesses in Florida are licensed by the Florida Department of Agriculture and Consumer Services (FDACS), not by DBPR. Ask for a written inspection report. To confirm a company is licensed, start with FDACS pest-control consumer guidance at https://www.fdacs.gov/Consumer-Resources/Consumer-Rights-and-Responsibilities/Pest-Control/Pest-Control-FAQ/How-do-I-know-if-a-pest-control-company-is-licensed and use FDACS's online business license search at https://cslicense.powerappsportals.us/Business-Search/ (search both the new and legacy databases if the agency notes a migration). You can also call FDACS at the number listed on that page.

Find a local pro

Compare pest control pros who serve Tampa, Largo or Wesley Chapel on Select The Service.

• Pest category: https://selecttheservice.com/services/pest
• Tampa: https://selecttheservice.com/services/pest/fl/tampa
• Largo: https://selecttheservice.com/services/pest/fl/largo
• Wesley Chapel: https://selecttheservice.com/services/pest/fl/wesley-chapel

Related reading: https://selecttheservice.com/blog/ac-maintenance-florida-humidity

FAQ

When is termite swarm season in Tampa Bay?

UF/IFAS says termite activity in Florida is most visible from March to June. Asian subterranean termites swarm in early spring, and Formosan subterranean termites usually swarm after sunset from early April to late June, peaking in May.

Why are there winged termites around my lights at night?

Formosan and Asian subterranean swarmers fly at dusk or after dark and are attracted to lights. Swarmers outside may come from elsewhere, but swarmers inside the house can mean an infestation.

What's the difference between drywood and subterranean termites?

Drywood termites live inside a single piece of wood and push out droppings year-round. Subterranean termites need moisture, nest in the soil and can form very large colonies that attack structures from the ground up.

What should I do if termites swarm inside my house?

Note where the swarmers appear, keep a few in a sealed bag, and schedule an inspection with a licensed pest control company. Avoid spraying them before the inspector sees the evidence.

Who licenses pest control companies in Florida?

Pest control businesses are licensed by the Florida Department of Agriculture and Consumer Services (FDACS). You can check a company before hiring.

How can I lower termite risk around my home?

Fix leaks and moisture problems, keep wood and thick mulch away from the foundation, and reduce exterior lighting at night during swarm season, since swarmers are drawn to lights.