Termite Swarmers: The First Warning
The most visible termite sign most homeowners encounter is a swarm — dozens to hundreds of winged reproductive termites emerging from the colony in spring, typically between March and May in Missouri, when soil temperatures warm sufficiently to trigger swarming behavior. Swarmers found indoors — on windowsills, around doors, near light fixtures — are a strong indicator of an established colony within the structure. Swarmers found outdoors in a yard or garden bed indicate a colony in the soil that may or may not have reached the structure.
Termite Swarmer vs. Flying Ant — Quick ID
- Termite swarmers: straight antennae, equal-length wings, broad waist (no pinch)
- Flying ants: elbowed antennae, unequal wing lengths (front longer), pinched waist
- Termite wings shed almost immediately after landing — piles of equal-length wings near windows are a classic sign
- Ant swarmers are less urgent — they don't eat wood
Signs of Active Termite Damage
Subterranean termites eat wood from the inside, following the grain, which means external surface damage is often the last visible sign of an infestation that has been active for months or years. Mud tubes — pencil-width earthen tunnels running along foundation walls, floor joists, and basement walls — are the most reliable structural sign of termite activity. The tubes protect the termites as they travel between the soil colony and the wood food source and are visible to any homeowner who inspects their crawlspace or basement foundation walls regularly.
Why Annual Inspections Matter
A subterranean termite colony can consume significant structural wood before producing any visible surface damage. Annual professional inspection, including probing of accessible structural wood and inspection of foundation walls for mud tubes, is the only reliable way to catch activity before structural damage becomes expensive.
Treatment Options
Liquid Barrier Treatment
A liquid termiticide applied to the soil around and under the foundation creates a chemical zone that kills termites contacting it. Effective immediately; protects the treated structure for 5–10 years depending on product and soil conditions.
Bait Station Programs
Monitoring stations placed around the perimeter intercept foraging termites, which then carry a slow-acting bait back to the colony, eventually collapsing it. Takes longer than liquid treatment but avoids soil injection and is preferred for structures where liquid application is impractical. D&D Pest Control provides termite inspection and treatment for Franklin County and rural Missouri — visit ddpestcontrolmo.com.