Garlic extract showed excellent inhibitory effects on all enteric bacteria . Other plants (parsley,celery,mint and pennywort) were not effective against enteric bacteria . the MIC of garlic against s.flexneri and e.cloacae was 40 mg/ml. The MIC of s.enteric a and e.coli were 20 and 10 mg/ml, respectively . the performance of the well diffusion method was better than that of the dise diffusion method with clear and sharp inhibition zones of tested bacteria against plant extracts