How to Kill Yellow Jackets in the Wall

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Yellow jackets build nests in trees, in the ground, and in voids in structures, such as empty spaces in walls. If you have yellow jackets in your wall, it’s best to contact an exterminator. But, if you’re feeling bold, you can take steps to eradicate them yourself.

Method 1
Method 1 of 3:

Taking Precautions and Purchasing Products

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  1. You’re probably trying to get rid of these yellow jackets on your own, but in some cases that may not be possible. If you don’t know where the nest is, if you’re allergic to yellow jackets, or if you’ve tried several strategies and still have a problem with yellow jackets in your walls, it’s best to contact an exterminator. These professionals have experience dealing with pests and can eliminate the problem for you.
  2. It’s best to treat a yellow jacket nest before the colony grows to an unmanageable size. The colony will grow over the warmer months, so it’s best to handle the problem as early as possible. Treating the nest at night ensures that most, if not all, of the yellow jackets are inside.
    • The yellow jackets will die off in the winter, so if the nest is in an unused space (like an attic), you could simply wait for their life cycle to end.
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  3. Because the yellow jackets are inside a structure, you can’t use dust, like Sevin 5 Garden Dust, to kill the yellow jackets. You’ll need a quick-freeze aerosol product designed to kill yellow jackets instead. Pick up several cans of this product from your local gardening center or home improvement store. [1]
  4. Yellow jackets can sting you, so it’s important to wear thick clothing and other gear to protect yourself. [2] You should also get a netted hood, like those used by beekeepers, to protect your face and head. [3]
    • Wear long pants, a long-sleeved shirt, thick socks, closed-toe shoes, and leather gloves.
  5. In some cases, the entrance the yellow jackets use can be up to 30 feet (9.1 m) away from the nest itself. Generally, the entrance to the nest is outdoors. Inspect the structure for holes and try to determine where the yellow jackets are coming from. [4]
    • If you aren’t sure where the nest is, look for a shiny area of the wall. The yellow jackets can actually use the drywall for nest material, leaving only a layer of paint between their nest and your living space. [5]
    • You may also be able to hear the yellow jackets moving inside the walls. Find the area where the noise is the loudest, either by placing your ear against the wall or using a listening device.
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Method 2
Method 2 of 3:

Getting Rid of Yellow Jackets

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  1. If the entrance to the nest is far from the nest itself, or if you are unable to find the entrance, you’ll need to drill a hole in the wall. The drill bit can be small—the hole only needs to be large enough to insert the nozzle of an aerosol spray can into it. Drill the hole as close to the nest as possible. [6]
  2. You’ll want to act fast so the yellow jackets can’t escape. Immediately after drilling the hole, stick the nozzle on the spray can into the hole. Spray the entire can of product into the hole to kill the yellow jackets. [7]
    • If the entrance is very close to the nest, you can spray the aerosol product into the entrance hole instead of drilling a new hole.
  3. It’s crucial to seal up the hole so the yellow jackets don’t emerge into your living space. Fill the hole with caulk or drywall mud, then cover it with masking tape. [8]
  4. It’s important to leave the entrance hole open so the yellow jackets can escape. Otherwise, the ones left alive may find a way to enter your home, like through small holes around electrical or light fixtures. [9] [10]
  5. If you still see, hear, or notice yellow jacket activity in the walls, you may need to spray the nest again. Be sure to wear protective clothing and follow the same procedure to kill the remaining yellow jackets. [11]
  6. In many cases, you can leave the nest inside the wall, like if it is in an attic. However, if there are lots of larvae in the nest, they can rot and attract other pests. If you want to remove the nest, it’s best to contact an exterminator as well as a contractor. They can work together to get rid of the nest and make repairs. [12]
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Method 3
Method 3 of 3:

Preventing Yellow Jacket Nests

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  1. Yellow jackets are attracted by food waste, so if your garbage cans are open, you may be luring them in. Use tight-fitting lids to seal your garbage cans, both indoors and outdoors, to discourage yellow jackets from roaming around your property.
  2. A bowl of Fido’s kibble on the patio could be attracting yellow jackets to your home. Rather than leaving pet food and other sources of protein outdoors, be sure to store these items inside your home or garage.
    • It’s best to store pet food in airtight containers. Dispose of any leftover food in the bowl once your pet is done eating.
  3. If you have holes in the exterior of your home, even if they are quite small, yellow jackets can get inside. Inspect your siding, screens, vents, and door jambs for holes. If necessary, replace the screens or weather stripping, or use caulk to seal up holes.
  4. If you see yellow jackets flying around your home or property, you can use a hanging trap to catch them. These traps use a sugar solution to lure the yellow jackets into a small hole. They cannot get out of the trap and will die.
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Expert Q&A

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  • Question
    Do I have any other options?
    Chris Parker
    Founder, Parker Eco Pest Control
    Chris Parker is the Founder of Parker Eco Pest Control, a sustainable pest control service in Seattle, Washington. Since 2016, Chris has been specializing in Integrated Pest Management and doesn’t use any chemicals for pest removal. He offers removal services for ants, rodents, fleas, spiders, wasps, and more. Chris is a certified Commercial Pesticide Applicator in Washington State and received his bachelor’s from the University of Washington.
    Chris Parker
    Founder, Parker Eco Pest Control
    Expert Answer
    You can use some form of insecticide to get rid of them, like a dry powder. You can apply it directly into the wall void or around the exterior of the hole that they're using to climb in there. If you want to go the non-pesticide route, there are companies that will actually cut into the wall and vacuum the yellow jackets out for you. Not all companies will seal the hole back up though, so you may need to hire a contractor to do that for you.
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      Warnings

      • If you have yellow jackets in your walls, the best option is to call an exterminator to deal with the problem.
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      Things You’ll Need

      • Protective clothing
      • Drill with a small drill bit
      • Quick-freeze aerosol spray for killing yellow jackets
      • Caulk or drywall mud
      • Masking tape
      • Hanging traps

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      References

      1. ↑ http://msue.anr.msu.edu/news/getting_rid_of_wasps_nests
      2. ↑ Chikezie Onyianta. Pest Control Specialist. Expert Interview. 1 April 2021.
      3. ↑ http://msue.anr.msu.edu/news/getting_rid_of_wasps_nests
      4. ↑ https://www.techletter.com/Archive/Technical%20Articles/yellowjackettracking.html
      5. ↑ https://abcwildlife.com/yellow-jacket-removal-tips
      6. ↑ https://www.techletter.com/Archive/Technical%20Articles/yellowjackettracking.html
      7. ↑ https://www.techletter.com/Archive/Technical%20Articles/yellowjackettracking.html
      8. ↑ https://www.techletter.com/Archive/Technical%20Articles/yellowjackettracking.html
      9. ↑ Chikezie Onyianta. Pest Control Specialist. Expert Interview. 1 April 2021.
      1. ↑ https://www.techletter.com/Archive/Technical%20Articles/yellowjackettracking.html
      2. ↑ https://www.techletter.com/Archive/Technical%20Articles/yellowjackettracking.html
      3. ↑ https://www.techletter.com/Archive/Technical%20Articles/yellowjackettracking.html

      About This Article

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      If you have yellow jackets in the wall, the first step is to find the nest. While wearing protective clothing, drill a small hole in the wall as close to the nest as possible. Immediately spray an entire can of a quick-freeze aerosol product designed to kill yellow jackets into the hole. Seal the hole you drilled with caulk or drywall mud, then cover it with masking tape. To learn more about what safety precautions to take as well as the best time to kill yellow jackets, read on...

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        Jul 21, 2021

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