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选用增效剂 S2 与丙溴磷、硫丹复配研制成丙·硫溴丹乳油.经内毒力测定其对家蝇的共毒系数(CTC)为 2 19增效作用显著 ,联合毒性为相加作用而不增毒 ,田间药试验对棉铃虫的防效优于单剂 ,具有使用经济、有效、安全的特点“,”On the basis of studing synergistic spectrum of S2, Mixed insecticides Bingliu EC is preparated by selectingand mixing S2 with Endosulfan and Profenofos. The results of the co toxicty coefficient(CTC) on Heliothis armigera if 219, the synergism is remarkable; Thejoint toxicity of the mixted insecticides is additionaland without increasing in toxicity. It it has been provedthat Bingliu EC has more effective than Endosulfan and Profenofos by field test. The characteristics of themixted insectides are safe economical and excellentlyective.