本试验表明，牛心朴子毒素对蚜虫没有内吸毒杀作用，但有很好的喷施毒杀效果。在小区试验中，对甘蓝蚜虫喷施浓度为０．８％、１．６％毒素乳油，１ｄ后，其毒杀校正死亡率分别为８５．１４％、８９．３９％；３ｄ后，其毒杀校正死亡率分别为９１．３５％、９２．１７％；５ｄ后，其毒杀校正死亡率分别为９６．２４％、９６．２４％，与敌杀死（７ｍｇ／ｋｇ）的毒杀效果基本接近。实际施用时，以配成２％毒素乳油（ＨＬＢ为８），０．２％浓度喷施为宜，这种制剂历时３０ｈ可杀死５０％以上的蚜虫。 The test shows that the bovine prickly ash toxins on the aphids no internal toxicity, but there is a good spraying poison killing effect. In the plot experiment, the poisoning-corrected mortality rates of cabbage aphid sprayed with 0.8% and 1.6% toxin were 85.14% and 89.39% respectively after 1 day. After 3d, The corrected mortalities were 91.35% and 92.17%, respectively. After 5 days, the lethality and the corrected mortalities were 96.24% and 96.24%, respectively. Basic close. In actual application, it is advisable to spray at a concentration of 0.2% with 2% toxin EC (HLB 8). This formulation can kill more than 50% of the aphids in 30 h.