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使用毒力效价为32000DPIUms，含菌数为2000～3000亿／g的苏力精原粉、微胶囊原粉，以1:40—80(轻质碳酸钙）：0；16～0．32（苯甲酸钠）的配方防治马尾松毛虫，每公顷施药量为2。25kg，防治后第10天虫口减退率为观9％～91．1％，防治后第25天虫口减退率为股83、6％～98．3%；平均达94．0%．校正防治效果为68．9％～96．8％，平均达88、6％。苏力精防治马尾松毛虫具有用量少、成本低（28．05元/hm2、效果好保护天敌和无污染等优点，适合大面积突发性马尾松毛虫防治。
The use of virulent titers of 32000DPIUms, the number of bacteria containing 2000 ~ 30000000000 / g of sour powder, the original microcapsule to 1: 40-80 (light calcium carbonate): 0; 16 ~ 0.32 (Sodium benzoate) to control Dendrolimus punctatus, the dosage was 2.25kg / ha, the rate of decline was 9% ~ 91.1% on the 10th day after the control, and the rate of decline was 25% , 6% ~ 98.3%, an average of 94.0%. The corrected control effect was 68.9% ~ 96.8% with an average of 88.6%. SuLiJing has the advantages of less dosage, low cost (28.05 Yuan / hm2), good effect of protecting natural enemies and no pollution, and is suitable for the prevention and treatment of large-scale sudden masson pine caterpillars.