 Wilt, stunting and lack of vigor can be observed as the primary symptoms, and infected leaves can possibly show interveinal chlorosis that leads to premature defoliation.The distinctive characteristic of "P. lycopersici" is that it causes brown lesions on the surface of medium roots which are known as a brown root rot.In addition, the pathogen produces corky lesions on the large roots while rotting can be observed in the small roots.