Updated: July 9, 2025

Summer barbecues are a quintessential way to enjoy good food and great company outdoors. However, nothing can ruin a fun gathering faster than an invasion of yellowjackets. These aggressive wasps are notorious for their painful stings and relentless pursuit of sugary and protein-rich foods, often turning a peaceful BBQ into a stressful event. Fortunately, with the right preventive measures, you can keep yellowjackets at bay and enjoy your outdoor meals in peace. In this article, we’ll explore effective strategies to prevent yellowjackets from invading your BBQ.

Understanding Yellowjackets

Before diving into prevention techniques, it’s important to understand what yellowjackets are and why they are attracted to BBQs.

Yellowjackets are a type of wasp characterized by their black and yellow markings and aggressive behavior. Unlike bees, yellowjackets can sting multiple times. They are scavengers and predators, feeding on other insects as well as human foods—especially proteins like meat and sweets such as soda or fruit juices.

During late summer and early fall, yellowjacket populations peak because their colonies grow large. This is also when they become most aggressive in seeking out food sources to sustain the colony.

Why Are Yellowjackets Attracted to Your BBQ?

  1. Food Odors: Grilled meats, marinades, sugary drinks, and fruit emit strong odors that attract yellowjackets.
  2. Open Containers: Leaving drinks or food uncovered provides easy access.
  3. Garbage: Trash bins with leftover food or drink residues are hotspots for these wasps.
  4. Sweet Beverages: Sodas, juices, and alcoholic drinks like beer attract them due to their sugar content.
  5. Bright Colors & Floral Prints: Yellowjackets can mistake bright colors or floral patterns on clothing for flowers.

By understanding what draws yellowjackets in, we can better implement tactics to reduce their presence around BBQs.

Effective Strategies to Prevent Yellowjacket Invasions

1. Choose the Location Wisely

Selecting the right spot for your BBQ can minimize yellowjacket encounters.

  • Avoid Areas Near Nests: If you notice yellowjacket nests nearby (often in trees, shrubs, underground burrows, or wall cavities), avoid hosting your event close by.
  • Open Spaces: Set up your grill and dining area in open spaces away from dense foliage where yellowjackets may nest.
  • Keep Food Stations Separate: Place food preparation and serving tables away from seating areas to reduce wasp activity near guests.

2. Maintain Cleanliness

Yellowjackets are attracted by leftover food and spills.

  • Clean Up Spills Immediately: Wipe down tables and floors frequently to remove food residues.
  • Cover Food When Not Serving: Use mesh food covers or lids for platters.
  • Promptly Dispose of Trash: Use sealed garbage cans with tight-fitting lids placed away from food areas. Empty trash regularly during the event.
  • Clean Grills After Use: Remove grease or food scraps from grills after cooking as these can attract wasps.

3. Manage Beverages Smartly

Sweet drinks are especially attractive to yellowjackets.

  • Use Covered Drink Containers: Provide cups with lids or use drink dispensers with spigots instead of open containers.
  • Offer Alternatives: Serve drinks in opaque bottles or cans rather than open glasses.
  • Have Water Available: Keep water accessible to dilute sugary consumption which may attract wasps less.

4. Use Natural Repellents

Certain scents naturally repel yellowjackets without harmful chemicals.

  • Peppermint Oil: Yellowjackets dislike the smell of peppermint oil. Place cotton balls soaked in peppermint oil around eating areas.
  • Clove, Geranium, and Lemongrass Oils: These essential oils also work as deterrents; use diffusers or spray diluted mixtures around seating zones.
  • Herb Plantings: Planting herbs like mint, thyme, and eucalyptus near your BBQ area can help deter wasps naturally.

5. Set Up Decoy Traps

Decoy traps lure yellowjackets away from your gathering.

  • DIY Trap Using Sugar Water or Meat: Cut the top off a plastic soda bottle, invert it as a funnel into the body of the bottle, and fill with sweet liquid or pieces of raw chicken. Place traps far from eating areas.
  • Commercial Yellowjacket Traps: Available at hardware stores; these traps effectively reduce local populations before the event.

6. Wear Appropriate Clothing

Avoid attracting yellowjackets unintentionally through your attire.

  • Avoid Bright Colors & Floral Prints: Opt for neutral-colored clothes such as white, grey, or beige during outdoor meals.
  • Stay Away from Fragrances: Perfumes or scented lotions may draw wasps closer.
  • Avoid Loose Clothing: Tight-fitting clothes make it harder for wasps to get under garments and sting skin.

7. Control Nesting Sites Around Your Yard

Long-term prevention involves reducing nesting opportunities near your home.

  • Seal Cracks & Holes in Walls or Foundations: Close possible entry points used by wasps for building nests inside structures.
  • Remove Debris & Woodpiles: Clear piles of wood, brush, or other materials where ground nests may form.
  • Keep Lawns Mowed & Vegetation Trimmed: This discourages ground nesting species of yellowjackets.
  • Regular Inspections: Check trees, sheds, eaves, and underground burrows for early signs of nests each spring/summer.

8. Use Physical Barriers

Physical barriers help keep yellowjackets out of critical zones.

  • Screened Tents or Gazebos: Hosting under screened enclosures prevents wasps from entering eating spaces entirely.
  • Mesh Food Covers & Drink Lids: As mentioned earlier, use covers consistently even if no wasps seem present initially.

9. Minimize Sweet Food Out in The Open

Since sugar is highly attractive:

  • Serve desserts indoors or only bring outside briefly when serving.
  • Use less sweet condiments like mustard instead of ketchup which contains sugars.
  • Keep fruit bowls covered until ready to serve.

10. Stay Calm and Avoid Swatting

If a yellowjacket approaches you:

  • Don’t panic or make sudden movements—they respond aggressively to threats.
  • Slowly move away without flailing hands.
  • Swatting may provoke multiple stings as they release pheromones that alert others.

What To Do If You Have A Yellowjacket Infestation?

If you notice large numbers of yellowjackets nesting near your home:

  • Contact professional pest control services to safely remove nests.
  • Avoid attempting nest removal yourself unless trained; disturbed nests can lead to dangerous stinging incidents.

Conclusion

Yellowjacket invasions can be a serious nuisance during summertime barbecues but don’t have to spoil the fun. By understanding what attracts these aggressive wasps and implementing proactive measures—such as maintaining cleanliness, using natural repellents, setting traps at a distance, choosing suitable locations, and avoiding behaviors that draw attention—you can significantly reduce the chances of an unwelcome buzzkill at your outdoor gatherings.

Plan ahead with these strategies so you and your guests can enjoy delicious grilled meals outdoors safely and comfortably all summer long!