When Sugar Ants Are Most Active?

Sugar ants, particularly the odorous house ant (Tapinoma sessile), exhibit peak activity during the warmer months. Their foraging behavior intensifies as temperatures rise, making spring a particularly active period.

You may also see them become more active just before the weather cools down in September and October.

As far as the time of day you’re most likley to see ant activity?  Sugar ants are primarily nocturnal, foraging from dusk to dawn. Their activity peaks during the cooler nighttime hours, which helps them avoid predators and human activity.  It also may be why you only see one or two ants – but where there’s one, there are many!

Spring Surge

The first big wave hits March through May. As temperatures warm, ants start foraging heavily. Rain can drive them indoors too.

Summer Plateau

In June and July, activity may drop slightly, especially in hotter regions. But they are still present and searching for food.

Fall Bounce

September and October bring another surge. Ants prepare for winter and move indoors to stay warm.

Winter Survival Indoors

In heated homes, ants can remain active all year. They are just less visible.

Why Timing Your Treatment Matters

The Egg Cycle Is Key

Even if you don’t see ants, they may be developing. Eggs hatch every 30 to 60 days. Waiting until you see activity usually means the problem is already underway.

Follow-Ups Are Essential

We return in 30 days to hit the next generation. It often takes that second visit to wipe out the remaining colony.

How to Prevent Sugar Ant Problems Year-Round

Outside Tips:

• Trim back bushes and trees
• Move firewood away from walls
• Fix leaks outside
• Clean up fruit tree debris

Inside Tips:

• Store food in airtight containers
• Clean counters and sweep daily
• Don’t leave pet food sitting out
• Repair indoor leaks

Scheduling Service

We recommend quarterly service (every 3 months) for most homes. It keeps colonies from taking hold. For food service businesses or recurring problems, we might suggest more frequent visits. We also offer free in-between calls if ants reappear unexpectedly.