The Neem tree is considered to be one of the most promising trees of the 21st century. It has great potential in the fields of environmental protection and medicine. Used widely for organic farming. Neem oil also controls black spot, powdery mildew and fungus. Dilute at the rate of 4 teaspoons per gallon of water. Adding a surfactant, such as liquid dishwashing soap, will enhance its effectiveness. Great for all bonsai trees and household plants.