EFFICIENCY EVALUATION OF SOME PLANT EXTRACTS FOR CONTROLLING OF BARLEY COVERED SMUT CAUSED BY USTILAGO HORDEI

Abstract

Results showed isolate of fungus Ustilago hordei from all samples of barley seeds which collected from (Ramadi, Fallujah, Heet and Al ameria) in Al-anbar province. The results indicated used of some plant extracts (Colocynth, Mints, Pomegranate peel) were used four concentrated (2,4,6,8 gm.l-1) to reduced of infection percentage of barley covered smut without effect of germination seeds of barley, also the results indicated concentration (6,8gm.l-1) colocynths to reduced of infection percentage of barley covered smut to 5% compared with control treatment in which the infection by U. hordei reach 30%.Result showed all concentration of plant extracted to increased of total vegetative length and weight of seeds compared with control treatment that contaminated by U. hordei