Abstract
This study has been performed in department of Horticulture / College of Agriculture / Kirkuk University. The aims of this work were to study the antifungal activity of some watery extracts with three concentration (1, 2, 3) ml/100ml of media of (Ponica granatum L., Qurecus aegilops L. and Quercus infectoria O .) on the growth of some pathogenic fungi to plants (Aspergillus niger, Rhizopus stolonifer and Penicillium oxalicum ) . The results revealed that all extracts of the above plants have inhibition effect on the growth of fungi under study, specially concentration 3 ml / 100 ml of media. The study showed that the minimum average of growth fungal of Aspergillus niger reached to 1.9 cm. in case of using the extract of Ponica granatum L. in the higher concentration 3 ml / 100 ml of media. On the other hand the study showed that the Penicillium oxalicum is the most sensitive species of fungi to extracts as the average of growth fungal was ( 2.1, 2.7, 3 ) cm. respectively on the concentration 3 ml / 100 ml of media for all extracts of plants.
The results of this study shows that Rhizopus stolonifer is the most resistant species of fungi to the effect of all extracts, the average of growth was ( 3.3, 3.2, 3.2) cm. respectively on the concentration 3 ml / 100 ml of media.