Integration of Pseudomonas fluorescens and Rosemarinus officinalis for controlling of potato bacterial wilt

Abstract Background Bacterial wilt caused by Ralstonia solanacearum is considered one of the most important diseases that cause economic losses to many crops and spread in regions around world, especially subtropical tropics some warm temperate world. In this study aqueous plant extract Rosemarinus officinalis Pseudomonas fluorescens for their antagonistic activity against bacterial vitro, greenhouse population R, plants was study. Results Following intensive screening studies, R. P. selected effectiveness potato antimicrobial or induction systemic resistance plants. greenhouse, all soil drenching treatments on significantly reduced disease incidence than infected control. , mixture between endophytic bacteria streptomycin profoundly severity 75.51, 65.0 77.9 81.00%, respectively, control (83.71%). The microorganism increased fresh dry weight (g) per compared non-treated bacterium from 100.1 169.9 also 68.4 170.4% bacterium. populations pathogen were lowest stem treated with extracts inoculated (50%). general, total phenols both non-inoculated Conclusions showed a strong vitro relation growth limitation as well limiting development under conditions.