Bacillus subtilis YL13 and application thereof

The invention discloses bacillus subtilis YL13 and application thereof. The strain YL13 is a broad spectrum plant disease resistant strain obtained through mutagenesis for the first time; the effectson inhibiting colletotrichum camelliae, sasanqua root rot bacteria, agaricodochium camelliae liu, dalbergia odorifera anthracnose bacteria, sandalwood anthracnose bacteria, alternaria solani, septofusidium bifusispora and rhizoctonia solani are obvious; the plant growth can be further promoted; the preparation method of relevant antibacterial agents is simple; the cost is low; the environment is protected; no pollution is caused; the effect is obvious; good application prospects are realized. 本发明公开了株枯草芽孢杆菌YL13及其应用。本发明的菌株YL13是首次通过诱变得到的广谱性的拮抗植物病害的菌株，在抑制油茶炭疽病菌、油茶根腐病菌、油茶软腐病菌、降香黄檀炭疽病菌、檀香炭疽病菌、番茄早疫病菌、梭孢菌、水稻纹枯病菌上的效果显著，还能进步促进植物的生长，相关抗菌剂的制备方法简单、成本低、环保、无污染，效果突出，具有很好的应用前景。