This invention discloses a composition of *Brachystomum clavatum* CUP3, *Brachystomum clavatum* CUP3, and *Raoultella
ornithine-lysinogen* RAO1, and its application in controlling
bacterial wilt in crops. *Brachystomum clavatum* CUP3 is classified as...
Cupriavidus yeoncheonensis The invention discloses the application of *Cup3*, a
copper-loving bacterium, in the control of soil-borne
bacterial wilt in crops. The invention also discloses a
bacterial composition containing *Cup3* and *Rauvolfia
ornithine-releasing* RAO1, or a
fermentation broth containing *Cup3* and *Rauvolfia
ornithine-releasing* RAO1; wherein the preservation number of *Rauvolfia ornithine-releasing* RAO1 is GDMCC NO:67513. Both *Cup3* and the
bacterial composition can reduce the occurrence of
bacterial wilt in tomatoes, especially the
bacterial composition, which can significantly reduce the occurrence of bacterial wilt in tomatoes.