the Inhibitory effect of some medicinal plants Extracts in Fungus Aspergillus niger

(Horsemint, Spearmint) (Nutgrass) (Black Cumin) 14 4 Aspergillus. niger 16.67 % . A. niger (Horsemint) 30 / 100 % A. niger 15 / (Spearmint) 20 / 100% . ketoconazole A. niger 3.5 / 100% 3.0 / 95.0% , 2.5 / 93.0% . Study of inhibitory effect of aqueous and alcoholic extracts of four medicinal plants, spearmint, horsemint, nutgrass and black seed black cumin, against some human pathogenic fungi isolated from different clinical cases, showed that 4 cases from 14 cases were positive and Aspergillus. niger was 16.67% .The study at inhibitory effect of aqueous extracts against the isolated fungi, showed that aqueous extract of Horsemint 30 mg / ml. was the best one, which inhibited the growth of A. niger completely 100 % .Alcoholic extracts of black seed 15 mg / ml. Spearmint 20 mg / ml. were more effective against A. niger, and inhibited its growth completely 100 %.Testing of inhibitory effect of some chemical antifungal agents against the isolated fungi showed that ketoconazole at concentrations 3.5, 3.0, 2.5 mg / ml. inhibited the growth of A. niger 100, 95.0, 93.0 % respectively.