Pseudomonas aeruginosa suspending agent and preparation method thereof

The invention discloses a pseudomonas aeruginosa suspending agent and a preparation method thereof, and belongs to the field of agricultural microbial pesticides. The pseudomonas aeruginosa suspending agent is prepared from the following components in percentage by weight: 8 to 12 percent of pseudomonas aeruginosa HZ15 bacterial suspension, 0.1 to 0.15 percent of xanthan gum, 0.06 to 0.12 percent of methyl parahydroxybenzoate, 0.1 to 0.5 percent of dextrin, 3 to 5 percent of glycerol, 0.5 to 1 percent of NNO, 0.5 to 1 percent of Tween 80, 0.5 to 1 percent of pesticide emulsifier 600 and the balance of water. The biopesticide for preventing and treating tobacco black shank is prepared from pseudomonas virens, the optimal type and dosage of auxiliaries are obtained through screening research, the suspending agent which is high in stability, high in suspension rate, excellent in dispersity and good in prevention and treatment effect is prepared, and the preparation is easy and convenient to prepare, environmenta