Insecticidal soap is a type of pesticide made from natural plant oils and fats. It works by suffocating soft-bodied insects like aphids, mites, and whiteflies. When sprayed directly on these pests, the soap disrupts their cell membranes, leading to dehydration and death. This product is often used in gardening and agriculture as a safer alternative to chemical pesticides. It is biodegradable and less harmful to beneficial insects, such as bees and ladybugs, when applied correctly. Insecticidal soap is effective on contact, so thorough coverage of the affected plants is essential for optimal results.