How to Kill Wasps Using Soap & Lemon

If you have wasps, you can kill them naturally without using pesticides or herbicides using lemons and soap. Wasps are actually beneficial insects because they kill common garden pests. They prefer to avoid humans and usually construct their nests in out-of-the-way places. When a wasp nest is in an inconvenient place that poses danger to you and your family you need to remove it or exterminate.

Things You'll Need

  • Liquid soap
  • 1 lemon
  • 1 2-liter plastic bottle
  • Scissors or knife
  • String
  • 1/4 cup sugar
  • Water

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Place 2 cups of water in a container that allows you stir it with a spoon. Add ¼ cup of sugar and stir until it is completely dissolved. Next, add 1/2 to 1 cup of liquid soap and the juice of of one lemon. Stir gently until the soap is dissolved. Try not to create too much suds with the soap.

Use a 2-liter plastic soda bottle to create the wasp trap. Carefully cut the bottle with a scissors or knife in half at the point where the bottle begins to taper at the top. Invert the top half so it resembles a funnel and place it inside the bottom half. Align the two edges--they should fit snugly. If you need to, fasten the two halves to each other with duct tape or a stapler. Cut two small holes at the top, adjacent to each other, to hang it up.

Decide where you want to hang the trap and cut a piece of string long enough to accommodate the height of the trap you desire. Tie a knot at one end of the string and thread the other end through both holes. Then tie a knot at the other end; now the string is secure. Pour half of your soap and lemon mixture through the funnel so it sits at the bottom of the bottle. Store the other half in a clearly marked bottle in your refrigerator or freezer and use it to rebait your trap. Hang your wasp trap and count the victims.

Tips & Warnings

  • Place the traps high enough so children and pets cannot reach them.
  • When you store the second half of the soap and lemon mixture, clearly mark the bottle so no one mistakes it for food.
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