The bacterial pustule caused by Xanthomonas campestris pv. glycines (Nakano)Dye 1978 damages some parts of soybean included leaf, stem and pod which most symptom severely occurs at leaves." The seriously damaged leaves defoliate causing decreased photosynthesis of the plant which in turn resulted in low yield and low quality." In Thailand, the losses due to this disease is considerably high in rainy season and particularly great in SJ4 varieties which are commonly grown in Thailand."
