Peanut or groundnut (Arachis hypogaea L.) is a member of the legume family, originated in South America, and today is largely cultivated in many tropical and subtropical areas worldwide. Peanut seeds are an important source of protein, carbohydrates, and oil for humans and animals. In addition to its use as food, the oil can be used directly to fuel diesel motors and phenolic resins obtained from the shells are excellent binding agents. The remainder of the plant is also useful as animal fodder and as a green cover crop providing fixed nitrogen to the soil (1).