Termite Swarms: What They Mean and What to Do
Seeing flying termites? Learn what termite swarms mean, when they happen, and exactly what to do to protect your home before it's too late.
What Is a Termite Swarm?
A termite swarm is nature's way of telling you that an established termite colony nearby is thriving and expanding. Swarmers — also called alates — are winged reproductive termites that leave their colony in large numbers to mate and start new colonies. If you see a swarm, it does not necessarily mean your home is infested, but it does mean termites are active in your area and your home could be at risk.
When Do Termites Swarm?
Subterranean termites — the most destructive species in the United States — typically swarm in spring, usually between February and May depending on your region. In Louisiana and the Gulf Coast, swarming often begins as early as February and can extend through June. Swarms are triggered by warm temperatures and rainfall, which is why you'll often notice them on a warm day following rain.
Formosan termites, one of the most aggressive species and heavily present in Louisiana, typically swarm at night between April and June and are strongly attracted to light sources.
How to Tell the Difference Between Termites and Flying Ants
This is one of the most common questions homeowners ask. Here's how to tell them apart:
Termites have straight antennae, equal length wings, and a straight body with no pinched waist.
Flying ants have elbowed antennae, unequal wings with the front pair being larger, and a clearly pinched waist.
If you find discarded wings near windowsills or doors, that's a strong indicator of termites — since they shed their wings immediately after swarming.
What to Do If You See a Swarm
Don't panic — but don't ignore it either. Here's exactly what to do:
- Do not spray the swarmers with bug spray. It won't solve the problem and only kills the swarmers, not the colony.
- Collect a few of the insects in a sealed bag or container so you can have them identified.
- Inspect your home for mud tubes along your foundation, damaged or hollow-sounding wood, and discarded wings near windows and doors.
- Contact a licensed pest control professional for a termite inspection.
Can You Treat Termites Yourself?
For subterranean termites, DIY options do exist. Borate wood treatments like Bora-Care are effective on exposed bare wood. Termite bait stations placed around the perimeter of your home can also be an effective long-term solution. However, liquid termiticide barrier treatments require professional equipment and licensing to apply properly.
At PestProDIY.com you can identify your pest, get a recommended treatment plan, and find the right products for your situation — all for free.
The Bottom Line
A termite swarm is a warning sign that should never be ignored. The earlier you act, the less damage termites can do. Whether you choose to treat yourself or hire a professional, the most important thing is to act quickly.
Have questions about termites or any other pest? Visit PestProDIY.com for free advice from a 25-year pest control professional.