Additional file 1. Table S1. Amount of fertilizer applied per plant. Fig. S1. Colony morphology of isolated bacterial strain Ralstonia solanacearum WS-001 on TTC medium. Fig. S2. Symptoms produced by WS-001on tobacco plant. Fig. S3. Stem streaming test. Fig. S4. Colony morphology of WS-10 on LB medium plates. Fig. S5. Phylogenetic tree constructed for molecular identification of WS-001 and WS-10. Fig. S6. Indole-3-acetic acid production ability of biocontrol agent WS-10. Fig. S7. Co-culture assay.