Late Summer Pest Surge: Why Pests Are Everywhere Right Now

Posted by Mosquito Squad Plus

September 15, 2026

Late Summer Pest Surge: Why Pests Are Everywhere Right Now

If pests in St Louis Metro East seem especially noticeable right now, it’s because they actually are.

We can sit here and tell you “it’s just the late summer surge,” but that doesn’t explain why you’re noticing more pests in late summer. After all, pest activity is typically high during mid-summer, too, but it can feel easier to ignore them then. Perhaps it’s because by late summer, we’re all thinking, “Hasn’t pest season nearly passed?” Well, not exactly.

The late-summer warmth still lets pests breed and stay active. Shorter days also signal a change of season, which means pests start moving to areas closer to your home, garage, or outbuilding to seek shelter. This is an especially important time of year to reduce pest activity before bugs begin moving indoors.

Which pests are likely to make the attempt?

Spiders, Ants, and Stink Bugs – Oh, My!

All three pests will start moving toward houses to seek shelter before the cooler temperatures kick in, and each has its own invasion habits. Stink bugs will seek sun-warmed exterior walls before squeezing through the tiny gaps around your siding, windows, vents, and utility lines. Spiders will track insects and other prey indoors through crawlspaces and foundations, and ants will typically target kitchens and pantries for moisture and food sources.

Basically, if you have possible entry points around your home, these pests will exploit them. The best way to avoid problems during winter is to focus in late summer and fall on identifying and sealing entry points to prevent them from getting inside in the first place. If that doesn’t sound like a fun task, don’t worry—Mosquito Squad Plus is here to help.

Complete Home & Yard Pest Control for Autumn Pests

Our Complete Home & Yard Package helps protect against 40+ common pests, including spiders, ants, stink bugs, crickets, and gnats. We’ll always begin your first service with a property inspection to identify entry points that we can seal to help prevent pests from getting in. We’ll also use the info we gathered to create a custom treatment plan tailored to your home’s layout and needs.

Then, using Barrier Treatment Plus, we’ll create a protective perimeter around your home that helps control up to 90% of pests for up to 21 days. During the season, we’ll return every three weeks to reapply it, always targeting the entry points to help actively stop pests from getting inside during autumn.

Where Do We Offer Pest Control Services?

Mosquito Squad Plus is pleased to offer mosquito control, as well as upgraded outdoor pest control services, including rodent control and deer control, throughout the St. Louis Metro East area, including these and more:

Looking for pest control St. Louis Metro? Call Mosquito Squad Plus.

Mosquito Squad of St. Louis Metro East is pleased to offer highly effective East St. Louis pest control solutions, including rodent control, tick control, mosquito control, and more throughout the area.