How to Keep Wasps Away From Your House: 9 Prevention Tips That Actually Work

Most of the year, wasps are just background noise, but from late spring through early fall they get bolder, especially once a nest is established near your home. Unlike honey bees, wasps can sting more than once, and they will if they feel their nest is threatened. Most wasp problems are preventable if you take away what draws wasps in and catch nests while they're still small. These nine prevention tips are the ones backed by New York extension experts, plus a simple trap you can build if wasps are already a nuisance.

1. Check Your Home for New Wasp Nests Every Week in Spring

Checking your home for new wasp nests every week in spring is the easiest way to stop a wasp problem before it starts. Each nest begins with a single queen that survived the winter, and Cornell's New York State IPM Program notes that nests usually go unnoticed until they're large and active. Cornell recommends checking buildings and grounds weekly or every other week on warm, sunny days from early spring through summer. Focus on the spots wasps prefer:

• Under eaves, gutters, and soffits
• Beneath deck boards, railings, and outdoor stairs
• Inside sheds, grills, mailboxes, and outdoor light fixtures
• Around holes in the ground, old stumps, and leaf piles

2. Knock Down Small Wasp Nests Early, Before the Colony Grows

Knocking down wasp nests early in the season works because a young nest has only a queen or a few workers to defend it. Cornell's New York State IPM Program recommends removing young nests with a strong jet of water or a long pole, ideally at night when all the wasps are on the nest, while wearing thick, loose clothing and gloves. Cornell Cooperative Extension of Tompkins County adds that very early morning, before the sun is up, also works because the wasps have had all night to cool down.

3. Seal Gaps in Siding, Screens, and Rooflines

Sealing gaps in your siding, screens, and roofline keeps wasps from building nests inside your walls and attic. Cornell's New York State IPM Program notes that yellowjackets will build nests inside buildings when they have access, and Cornell Cooperative Extension points out that the larger the opening, the larger the pest you can end up hosting. Walk the outside of your house and check:

• Window frames, door thresholds, and window screens
• Siding seams and gaps where siding meets the foundation
• Vents, chimney openings, and soffits
• Flashing along eaves and rooflines

Replace torn screens, caulk small gaps, and cover vent and chimney openings with fine mesh. If you see wasps flying in and out of a gap right now, don't seal it while the colony is active. Call a professional to treat the nest first, then seal the opening.

4. Cover Food and Drinks When You Eat Outside

Covering food and drinks outdoors removes the main reason wasps show up at patios and picnics in late summer. Cornell's New York State IPM Program explains that yellowjackets hunt insects early in the season, then shift to scavenging around picnic food and drinks later in the summer. German yellowjackets can travel up to three quarters of a mile looking for food, so an open plate in your yard can draw wasps from well beyond your property line.

• Keep food covered until you're ready to eat, and clear plates right after
• Serve drinks in cups with lids, and check cans before taking a sip
• Wipe up spills on tables and decks right away
• Feed pets indoors, or pick up outdoor pet bowls after meals

5. Lock Down Trash, Recycling, and Compost

Locking down trash, recycling, and compost takes away one of the most reliable food sources wasps find around a home. Cornell's New York State IPM Program lists trash bins and compost piles among the places yellowjackets gather in late summer. Eastern yellowjackets also build nests in compost and leaf piles, so an open compost pile can be both a food source and a nest site.

• Use trash and recycling bins with tight-fitting lids
• Rinse soda cans, juice boxes, and food containers before recycling them
• Rinse out bins every few weeks during summer
• Keep compost covered and turn it regularly so it isn't left undisturbed

6. Pick Up Fallen and Overripe Fruit

Picking up fallen and overripe fruit cuts off a sugar source that draws wasps into yards every fall. Cornell's New York State IPM Program notes that bald-faced hornets mostly hunt insects, but develop a taste for sugar in overripe fruit like apples and figs in late summer. If you have apple, pear, peach, or fig trees, collect dropped fruit every day or two once it starts falling, and harvest ripe fruit promptly.

7. Remove Ground Nesting Spots From Your Yard

Removing ground nesting spots makes your yard less attractive to yellowjackets, which are the most aggressive wasps around homes. Cornell's New York State IPM Program notes that some yellowjackets nest in abandoned rodent burrows, rotting tree stumps, and leaf or compost piles. Clearing those spots when no wasps are using them leaves queens fewer places to start a colony.

• Remove rotted wood, old stumps, and woodpiles you no longer need
• Fill in old animal burrows and holes, then pack the soil down firmly
• Rake up leaf piles instead of leaving them sitting for months

8. Set Wasp Traps in Late Summer, Away From Where You Gather

Setting wasp traps in late summer and fall reduces the number of foraging wasps around your yard when colonies are at their largest. Cornell's New York State IPM Program recommends traps baited with fruit punch or orange soda to draw wasps away from areas where people gather. You can build one in about ten minutes.

What you need: a 2-liter plastic bottle, scissors or a utility knife, about a cup of fruit punch or orange soda, a drop of dish soap, tape, and string if you want to hang it.

1. Cut the top third off the bottle to create a funnel.
2. Pour the fruit punch or orange soda into the bottom half and add a drop of dish soap.
3. Flip the top piece upside down, set it inside the bottom half funnel-side down, and tape the edges together.
4. Hang or place the trap a good distance away from your patio, deck, or play area.
5. Empty and refresh the bait every few days.

Commercial traps work the same way and are sold at most hardware stores. Traps reduce foraging wasps, but they won't eliminate the nest those wasps are coming from.

9. Seal Last Year's Nest Sites Over the Winter

Sealing last year's nest sites over the winter keeps new queens from moving into the same spots next spring. Cornell Cooperative Extension of Tompkins County explains that wasp and yellowjacket colonies die off after hard frosts, and only mated queens survive the winter to start new nests. That makes winter the best time to make repairs, since nothing is defending the old site. Cornell's New York State IPM Program recommends using the off-season to:

• Seal holes and gaps where wasps got into wall voids
• Fix flashing along eaves where wasps entered the house
• Fill and pack down ground holes that held colonies
• Write down where you found nests this year so you know where to check first next spring

Which Wasps Are Most Common Around Homes in New York?

The wasps most likely to cause problems around homes in New York are yellowjackets, bald-faced hornets, and paper wasps. Knowing which one you have matters, because nest location, colony size, and how aggressively they defend the nest all change which prevention tips matter most. Cornell's New York State IPM Program describes the common species this way:

When Should You Use Each Wasp Prevention Tip?

Wasp prevention works best when each tip lines up with what wasps are doing that season. Cornell Cooperative Extension of Tompkins County explains that colonies grow all season and reach their peak in late summer, which is why wasps seem to appear out of nowhere around August.

What Doesn't Work for Keeping Wasps Away?

Repellent plants, decoy nests, and spraying hidden nests yourself are popular fixes that don't reliably keep wasps away. These ideas get shared widely online, but they don't appear in Cornell's guidance for managing wasps in New York, which focuses on monitoring, early nest removal, sanitation, trapping, and sealing entry points.

How Can You Tell Wasps From Bees?

Wasps have smooth, shiny bodies and hunt other insects, while most bees are fuzzy and feed on pollen and nectar. Cornell's New York State IPM Program explains that bees carry branched hairs that collect pollen, which is why they look fuzzy, and wasps have few or none. The difference matters because bees are handled differently than wasps.

What Should You Do If a Wasp Stings You?

If a wasp stings you, walk away from the area calmly and quickly, because a disturbed nest may send more wasps after you. Cornell's New York State IPM Program notes that stings from colony-building bees and wasps can cause life-threatening reactions in people with allergies, and sometimes in pets. Cornell recommends having an action plan ready for anyone in your household who could be stung.

When Should You Call a Professional for Wasps?

You should call a professional for wasps once a nest is large, hidden inside your home's structure, or in a spot you can't reach without a ladder. Prevention tips handle most early-season problems, but Cornell's New York State IPM Program recommends hiring a pest management professional for large yellowjacket and hornet nests. Other signs it's time to call:

• You see wasps going in and out of a gap in your siding, soffit, or roofline
• You hear buzzing or chewing inside a wall or ceiling
• There's a ground nest near a walkway, play area, or garden bed
• Someone in your home is allergic to stings
• You've already been stung trying to handle the nest yourself

A professional can identify the species, treat the nest, and check for other entry points you might have missed. If a nest on your property has gotten past the point of a DIY fix, our wasp and bee control team can take care of it.

Frequently Asked Questions About Preventing Wasps

At A&C Pest Management, we've been protecting Long Island homes from wasps, bees, and every other backyard pest for over 57 years. Our technicians know which species are active in Nassau and Suffolk County yards and how to remove a nest without putting your family at risk. If wasps have taken over your yard, call us at 516-683-8376 or get a free quote, and we'll take it from here.