If stinging insects are buzzing around your home or yard, it’s important to know what you’re dealing with before attempting to remove a nest. Rose Pest Solutions has helped homeowners throughout Chicagoland, the Greater Rockford region, the Milwaukee metropolitan area, the Racine Kenosha area, and Southern Wisconsin identify and manage stinging insect problems for more than 165 years. Here are five important facts every homeowner should know.
#1. Stinging Insect Species in the Midwest
Stinging insects become more active during summer and into early fall. Their colonies are growing, nests are expanding, and workers are focused on gathering food to sustain the colony and support the queen ahead of winter. When outside with family and friends, you’ll likely see activity from these common species:
- Yellowjackets – They’re highly aggressive, quick to defend their nests, and are attracted to sugary foods and proteins. They often build nests underground or inside wall voids, so they can go unnoticed until activity really ramps up.
- Paper Wasps – These stingers live in the classic umbrella-shaped nests, but they’re less aggressive than yellowjackets and only sting if disturbed. They typically feed on nectar and small insects and often nest under eaves or on outdoor structures.
- Bald-Faced Hornets – Despite their name, these are actually a type of wasp. They construct large, enclosed paper nests in trees or on buildings. Bald-faced hornets are extremely defensive and will respond aggressively to perceived threats.
- Cicada Killer Wasps – When you see one, it can appear large and intimidating, but it’s generally the least aggressive toward people. They focus on hunting cicadas to feed their young and typically nest in the ground.
#2. Stinging Behavior
Not all insects equipped with a stinger are eager to use it, and some of them don’t even have stingers. Use caution around all of them, but getting to know the more aggressive ones can help avoid a situation where you end up with a painful sting…or worse. Keep this in mind:
- The Most Aggressive – Yellowjackets are known for their aggression and constant defensiveness. Their behavior can get more erratic as summer goes on.
- Moderate Aggression – Paper wasps are much less aggressive. They will usually only sting if they feel directly threatened, like when you try to kill one in your house with a fly swatter and miss, or if you bump a nest.
- No Stinger – Female carpenter bees have stingers, but the males do not.
#3. Health and Structural Risks
Stinging insects are responsible for sending thousands of people to emergency rooms every year. Honey bees can only sting once, but many wasps and hornets can sting multiple times, often in rapid succession. When a nest is disturbed, these insects may swarm and attack in groups, with as many as 15,000 wasps in a colony. If you have allergies, a single sting can trigger a severe reaction, causing symptoms such as swelling, difficulty breathing, and a drop in blood pressure. Immediate medical care is critical.
Harm to your home and other wood structures is a concern as well. Carpenter bees bore into untreated wood to lay eggs. This tunneling can extend up to 10 feet, weakening structures like beams and rafters.
#4. Common Nesting Sites for Stinging Insects
Paper wasp nests are easy to spot in trees, but other species prefer areas that offer shelter, warmth, and easy access to food. Keep an eye on these common locations:
- Under Eaves – Paper wasps frequently attach their open nests to overhangs for protection from weather.
- Ceiling Beams in Attics – Wasps and hornets may establish hidden colonies in quiet, undisturbed attic spaces.
- Garages and Sheds – These areas offer ideal shelter and low human activity, making them attractive nesting spots.
- Under Porches – Also popular because they’re shaded and protected.
- In The Ground – Yellowjackets and cicada killers commonly build nests below the surface in lawns or landscaping beds.
#5. Ways to Prevent Stinging Insects From Nesting Nearby
You can keep stinging insects at a distance by making your property less inviting. Consistent upkeep and early detection reduce risk and allow issues to be addressed before a large colony is established. Steps you can take include:
- Paint Or Stain Untreated Wood – Bare wood attracts carpenter bees and some wasps. Sealing surfaces like decks, fences, and playsets makes them less appealing for nesting.
- Overseed Lawns for Thicker Coverage – Dense grass reduces exposed soil, limiting nesting opportunities for ground-dwelling insects like yellowjackets and cicada killers.
- Inspect Common Nesting Areas – Regularly check window shutters, awnings, eaves, sheds, and other structures for early-stage nests.
Professional Stinging Insect Control You Can Rely On
Removing a stinging insect’s nest isn’t a recommended DIY job. It puts homeowners and family members at risk, especially if it’s a more aggressive species. Disturbing a nest will threaten any type and put them into defense mode. Rose Pest Solutions offers safe and effective pest control in the Chicagoland, Greater Rockford, Southern Wisconsin, and Milwaukee, WI areas, so you can remain safe and leave the hard work to the pros. If you notice increased activity near eaves or have spotted a nest on your property, contact our family-owned business for local expertise. We’ll help you manage and prevent pests around your home.
Frequently Asked Questions
Is It Safe to Spray a Wasp’s Nest?
Store-bought sprays can be dangerous if used incorrectly. Approaching a nest without proper protective gear can provoke an aggressive response. Professional treatment is the safest option.
What’s the Difference Between a Hornet, Yellowjacket, And Bumble Bee?
Hornets and yellowjackets are types of wasps known for aggressive behavior and smooth bodies. Bumble bees are generally more docile, fuzzy in appearance, and are important pollinators.
Are Stinging Insects Active in the Winter?
Most wasps, yellowjackets, and hornets are not active outdoors during a typical Midwest winter. After freezing temperatures arrive, their colonies die, but newly mated queens survive in protected areas and emerge in spring to establish new nests.
Honey bees are different. Their colonies survive the winter inside the hive, where the bees cluster together for warmth. On an unusually mild winter day, you may occasionally see a bee or overwintering queen become active.
What Do Stinging Insects Look for When Building a Nest?
They seek sheltered locations with access to food and water. Quiet, undisturbed areas around homes, like eaves, attics, and underground spaces, are especially attractive.
