The powerful duo! Both Castile soap and Neem oil act as a natural pesticide and preventatives from most insecticides that can affect your plants. Mixing them together will ensure a more effective result. Mix 1 tablespoons of Castile soap with 1 tablespoon of Neem oil in one liter of water and spray heavily on your plant and soil. If your plant is infected, repeat the process again once every week for three weeks even if the infection has disappeared. ______________________________________ Black Lotus is a health\beauty brand known for their very effective natrual products.