 The term "Horticultural Oil" may be used to differentiate this petroleum oil-based product from home made products using vegetable oil.The quantities vary depending on the source, but a common concentrate typical mixture is 4 parts of vegetable oil (a non-mineral oil) to one part of liquid dish-washing soap/detergent (for washing by hand).It may be blended in a mixer or shaken by hand in a jar or bottle until homogeneous to be stored.