To kill lawn bugs with dish soap, mix a solution of pureed garlic, mineral or vegetable oil, water and dish soap, and spray the areas of infestation. If this does not work, use an insecticidal soap or horticultural oil instead of dish soap.
- Prepare the garlic
Remove the outer skin from one head of garlic, and peel each individual clove.
- Puree the garlic cloves
Place the peeled garlic cloves in a blender with 2 tablespoons of vegetable or mineral oil. Add 2 cups of water. Puree until the three ingredients are combined.
- Let the puree sit
Pour the garlic water puree into a spray bottle, and set the mixture aside for a minimum of 12 hours.
- Add the dish washing soap
Pour 1 tablespoon of dish washing soap into the spray bottle with the garlic water puree. Do not use dish soap that contains bleach. Shake the bottle very well to mix the ingredients.
- Spray the areas of infestation
Spray areas of lawn bug infestation liberally with the solution. If you need to spray large areas, mix a big batch of the solution without water, and use a hose sprayer.
- Switch to insecticidal soap or horticultural oil
Some insects are resistant to dish washing soap because it is mild. If the infestation continues after several sprayings, switch to an insecticidal soap, or use horticultural oil. Mix either one with water, and spray the infested area.