Pseudomonas veronii NF9-1 and application thereof

The invention relates to a biocontrol microbial agent, wherein the effective active component of the biocontrol microbial agent is composed of Pseudomonas veronii NF9-1, and the effective active component of the biocontrol microbial agent is composed of Pseudomonas veronii NF9-1. The biocontrol microbial agent is characterized by being an aqueous solution and comprising the following components in percentage by weight: 89.5-99.8% of pseudomonas veronii NF9-1; 0.1 to 10% of sodium dodecyl sulfate; and 0.1 to 0.5 percent of potassium sorbate. During application, the aqueous solution is sprayed to leaf surfaces for preventing and treating strawberry anthracnose and strawberry powdery mildew, and is irrigated to roots for preventing and treating strawberry fusarium wilt and the like. The method has the advantages that by introducing the pseudomonas veronii NF9-1 which is safe to human and livestock and has a good prevention and treatment effect on various diseases of strawberries, the purpose of preventing and tr