1 quart. Treating insect infestations on plants with soap applications is an effective and non-toxic solution for both indoor and outdoor plants. Insecticidal soap works mechanically by coating the insects with a layer of fatty acid (soap) and smothering the pest. Our Super Soap takes that one step further with the addition of Spinosad, a natural compound made by a soil bacterium that controls a wide range of insects including caterpillars. Spinosad works on contact and through ingestion and does not persist in the environment, breaking down into harmless elements with exposure to sunlight and microbes. This ready-to-use spray is simple to apply, good for food crops, houseplants and other ornamentals, kills a laundry list of 32 bugs, and also kills powdery mildew. Approved for organic gardening by the USDA’s National Organic Program (NOP).