Biological control disease-resistant promoting method for Zanthoxylum bungeanum

The invention discloses a biological control disease-resistant promoting method for Zanthoxylum bungeanum. The method comprises the following steps of making bacillus subtilis into high-density bacterium suspension of which the density is 109-1010cfu (colony-forming unit)/mL; cutting healthy branches of the Zanthoxylum bungeanum into small sections for composting; spraying the high-density bacterium suspension of the bacillus subtilis in the composting process; fermenting to obtain biological fertilizer capable of effectively suppressing and killing pathological fungi of the Zanthoxylum bungeanum, and applying the biological fertilizer to the biological control disease-resistant promoting of the Zanthoxylum bungeanum. According to the biological control disease-resistant promoting method disclosed by the invention, as the bacillus subtilis producing beta-glucanase is plant probiotics of playing a role of disease-resistant promoting on the Zanthoxylum bungeanum, by adding the bacillus subtilis to compost, the biological control action on pathogenic bacteria of phytophthora capsici of the Zanthoxylum bungeanum is remarkably enhanced, and the bacillus subtilis has a promoting effect; the composting process treatment is simple; no waste water is drained; the investment is small; the energy consumption is low; the operation is easy; the biological control disease-resistant promoting method is easy for industrialized mass production, and has a good economic benefit and a broad application prospect.