Non-toxic magnaporthe oryzae strain for preventing and controlling rice blast and application thereof

The invention is applicable to the technical field of microbial engineering, and provides a non-toxic magnaporthe oryzae strain for preventing and controlling rice blast and application thereof, the magnaporthe oryzae strain is named as magnaporthe oryzae M16-1, with the preservation number being CCTCC NO: M2020677. Besides, a preparation method of magnaporthe oryzae fermentation broth comprises the following steps: inoculating the magnaporthe oryzae to a PDA culture medium for activation culture, and then inoculating the magnaporthe oryzae to a PDB culture medium for fermentation culture to obtain the fermentation broth. According to the invention, M16-1 strain fermentation broth is utilized to excite the immune response of rice plants to pathogenic bacteria for resisting the infection ofpathogenic bacteria, thus realizing the biological control of rice blast. The M16-1 strain fermentation broth can stimulate the broad-spectrum disease resistance of rice, and different from a methodof controlling the rice bl