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.Continue Reading
Remove the outer skin from one head of garlic, and peel each individual clove.
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.
Pour the garlic water puree into a spray bottle, and set the mixture aside for a minimum of 12 hours.
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 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.
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.