It is widely accepted that peanut diseases impair yield as well as quality of pods resulting in lower net profit to the growers.Consequently, host plant resistance is viewed as a logical option to develop genetic resistance to the most common peanut diseases.Because of their cross-compatibility to the cultivated peanut, Arachis hypogaea L., diploid wild species from section Arachis have been the most commonly used genetic resources of resistance genes for peanut improvement.