The Summertime Blues Affect Stinging Insects, Too

Experts reveal why these pests become more aggressive this time of year and what to look out for 

FAIRFAX, Va. (Sept. 15, 2026) — Summer is almost at a close, but that doesn’t mean stinging insects are done just yet. The National Pest Management Association (NPMA) shares why yellowjackets, hornets and wasps can be even more dangerous during late summer and early fall and how to stay protected. 

Stinging insects emerge in spring and begin to build their nests. Once autumn rolls around, their colonies are often at their largest. This means they’re all stingers on deck to forage food to sustain their queens during cooler months, making them more aggressive if threatened or bothered.

“People commonly associate stinging insects with summer, which isn’t wrong,” said Dr. Jim Fredericks, senior vice president of public affairs at NPMA. “However, they can become especially dangerous in early fall because their populations have been growing since the spring. No matter the season, it's important to take preventive measures to avoid disturbing these insects’ nests and ultimately getting stung.” 

Every year, about half a million people go to the emergency room for insect stings. Detecting nests early and having them professionally removed is a key part of seasonal maintenance, helping homeowners protect their homes and health.

NPMA shares a few tips to avoid unwanted encounters with stinging insects while soaking up the last few weeks of nice weather: 

If an infestation is suspected, contact a licensed pest control professional to identify the threat and provide a recommended plan of action.