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Abstract
The present work was conducted to study :
1-Isolation and identification of the casual organisms of sugarbeet root rot disease.
2-Virulence tests.
3-The reaction of some cultivars to sugarbeet root rot disease in the field.
4-The efficiecy of some plant extracts on R.solani, F.solani and S.rolfsii in laboratory greenhouse and field.
5-Studty the effect of certain biological agents in controlling sugarbeet root-rot disease under laboratory, greenhouse and field conditions.
6-Study the combined effect of plant extracts with vitavax-therim.
7-Effect of vitavax-therim fungicide on the efficiecy of biological control in vitro and in vivo.
8-Effect of soaking seed into different combinations of plant extracts, bioagents and fungicide on infection with S.rolfsii in greenhouse.
9-Effect of these treatments on oxiidizing enzymes.