Tree Tanglefoot Insect Barrier is a sticky, caramel colored paste made from natural gum resins, vegetable oil and wax. When applied as a continuous band around the trunks of shade trees, fruit trees, plants or vines, it creates a barrier that effectively entraps or repels destructive climbing insects. The combination of ingredients is non-toxic to insects, humans, pets and the environment. Tree Tanglefoot works strictly in a mechanical fashion. It is listed by the Organic Material Review Institute (OMRI) for use in organic gardening.