What kind of soap kill bugs?

Diluting soap in water for application as a sprayis the way in which soap is used as an insecticide.

Specifically, the ratio of soap to water depends upon the gravity of the problem, the schedule for problem resolution, and the type of pest. A soap that is used for washing dishes in the sink - not the dishwasher - is what can be used. A common dilution formula requires 10 parts of water to every part of soap. The final product - known as insecticidal soap - should fit into a container with a spray nozzle.