Late Summer Pests – What to Watch For (Stinging Insects)

The Summer Isn’t Over Yet—and Neither Are the Pests

As the summer sun lingers into August and September, many homeowners believe pest problems start winding down. Unfortunately, that’s not the case—especially when it comes to stinging insects. In fact, late summer is peak season for wasps, yellow jackets, hornets, and other aggressive insects that can turn backyard barbecues into a battle zone.

Understanding why stinging insects are more active now—and how to deal with them—can help you stay safe and pest-free through the rest of the season.

Why Stinging Insects Get Aggressive in Late Summer

Stinging insects like yellow jackets and hornets become more aggressive in late summer for a few key reasons:

• Food Sources Dwindle: In early summer, these pests feed primarily on proteins to fuel colony growth. As the season progresses, their dietary preference shifts toward sugars—and they begin scavenging aggressively for sweet drinks, fruit, and garbage.
• Colony Size Peaks: By August and September, colonies are at their largest, making these insects more territorial and defensive. This increases the likelihood of stings if you get too close to their nest.
• Breeding Season Begins: Late summer is also when new queens are produced. The colony works overtime to protect them, which increases stinging incidents around nests.

Common Late Summer Offenders in Massachusetts & Connecticut

Here’s a look at the most common stinging insects you’ll likely encounter as summer ends:

• Yellow Jackets: Known for nesting underground or in wall voids. Extremely aggressive, especially near food or drink.
• Paper Wasps: Create umbrella-shaped nests under eaves, deck railings, and outdoor furniture.
• Bald-Faced Hornets: Actually a type of yellow jacket that builds large aerial nests, often in trees or shrubs.
• Honeybees and Bumblebees: Less aggressive and more beneficial, but still capable of stinging if provoked.

How to Protect Your Home and Family

1. Inspect Your Yard Weekly: Check for nests under decks, in bushes, eaves, and sheds. Don’t attempt to remove a nest yourself—stinging insects are highly territorial.
2. Secure Trash Bins: Keep garbage tightly sealed and clean up spills—especially sugary drinks—immediately.
3. Avoid Strong Fragrances Outdoors: Perfumes, colognes, and scented lotions can attract stinging insects.
4. Don’t Swat—Stay Calm: If a stinging insect is near you, avoid swatting, which can provoke an attack. Move slowly away from the area.

What to Do If You Spot a Nest

If you find a nest, especially one in a high-traffic area, don’t disturb it. DIY methods often lead to dangerous swarming behavior. Instead, contact a pest professional who can safely assess and remove the threat using the proper tools and protective gear.

Don’t Wait for a Sting to Take Action

The sooner you address stinging insect activity, the safer your home and family will be. Schedule a late summer pest inspection with Graduate Pest Solutions and let us safely identify and treat stinging insect nests before they become a hazard.