Fig. 4.
Positive reaction of race (3), biovar (2) of R. solanacearum isolate (RS5) in the serological immunofluorescent antibody staining (IFAS) test.
Positive reaction of race (3), biovar (2) of R. solanacearum isolate (RS5) in the serological immunofluorescent antibody staining (IFAS) test.