Types of diagnostic discs Diameterof MZI (mm) X. strumarium 21.25 C. molle 19.5 FR1 23.25 Tetracycline NI Gentamicin 25 DMSO NI

Table 8: MZI (mm) exhibited by 10% extract of three plants compared with commonly used conventional antibiotic discs and negative control against St. agalactiae. NI= no inhibition.