How to Kill Wasps With WD40


Wasps are predators that are very territorial, returning to the same nesting location year after year. The best way to keep wasps away is to prevent them from returning to build a new nest. If they return successfully, exterminating them before they multiply is your next best defense. While many commercial products exist to exterminate wasps, a product commonly found in most garages or homes will also do the trick. WD-40 helps to effectively kill and prevent wasps from nesting around your home.

Things You'll Need

  • Broom
  • Plastic zip bag
  • WD-40
  • Rubber gloves
  • Prevent wasps from returning to old nesting locations. Remove any remnants of the old wasp nest by knocking it down with a broom. Discard the old wasp nest in a sealed bag.

  • Spray the location of previous wasp nests using WD-40. Apply the WD-40 liberally underneath gutters, eaves and anywhere else wasps have been spotted and are likely to build nests.

  • Saturate active wasp nests with WD-40. Do so in the evening when temperatures are cooler, as wasps do not move as quickly in cooler temperatures. Err on the side of caution and really soak the nest.

  • Wait an hour to ensure all wasps have been killed. Knock the nest down with a broom or other long-handled tool and place it in a plastic zip bag. Wear rubber gloves to protect your skin in the event that one or two wasps are still alive.

Tips & Warnings

  • Exterminate wasps in June, before the queen has time to build a new colony.
  • Observe what appears to be an empty wasp nest for activity, prior to knocking it down for removal. Be certain the nest is empty. If any wasps are in the nest you may end up getting stung by angry wasps when the nest falls down.
  • WD-40 can sting the eyes and wasps can sting your body. Wear goggles and clothing that covers your skin when spraying a wasp nest.

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  • Photo Credit wasps image by Maksym Dyachenko from wasp image by Mirek Hejnicki from
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