As temperatures drop in Pennsylvania, a new wave of pests begins looking for warmth and shelter—often right inside your home or business. These seasonal pests, known as fall invaders, can sneak in through tiny gaps and cracks, making themselves comfortable before winter arrives. At Commonwealth Pest Management, we help homeowners and property managers stay one step ahead.

What Are Fall Invaders?

Fall invaders are pests that don’t typically live or breed indoors, but use buildings as overwintering sites. They become active during the fall as they search for a protected spot to survive the cold months.

Common fall invaders in our region include:
– Stink bugs
– Boxelder bugs
– Cluster flies
– Asian lady beetles
– Spiders
– Rodents (especially mice)

How Do Fall Invaders Get Inside?

These pests are masters at slipping through gaps around windows, under doors, behind siding, and through roofline vents. Many structures, especially older homes, offer dozens of potential entry points—often unnoticed until the pests start appearing inside.

How to Prevent a Fall Invasion

 Inspect and seal cracks around windows, doors, and foundations
Repair or replace torn screens and install door sweeps
Replace exterior white lights with yellow bug lights to reduce attraction
Check attics, crawlspaces, and wall voids for signs of rodent activity
Don’t squash stink bugs indoors—they release a strong odor as a defense mechanism

Our Fall Pest Control Service

At Commonwealth Pest Management, our fall service includes exterior perimeter treatments, crack-and-crevice exclusion work, and rodent bait station placement if needed. This seasonal treatment creates a barrier before pests move in—and keeps your home protected all winter long.**Don’t wait until pests are already inside.** Call Commonwealth Pest Management today and schedule your fall invader protection plan.

Serving Lancaster, Berks, Chester, York, and surrounding counties with expert seasonal pest solutions.