There is a growing interest in using biocontrol agents to control fungal diseases and increase the production of jujube fruit (Zizyphus jujua Miller var. inermis Rehder). The purpose this study was use Bacillus licheniformis PR2 inhibit promote orchards. B. secreted 92.4 unit/mL chitinase, which inhibited phytopathogens through hyphal alterations with swelling bulbous structures. also mycelial ...