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本研究以氟虫腈·毒死蜱18%种子处理微囊悬浮剂为对照药剂,测定了氟虫腈·毒死蜱18%种子处理微囊悬浮剂包衣花生种子后氟虫腈和毒死蜱在花生根际土壤和根系中的剂量动态及对花生蛴螬的防治效果。实验结果表明包衣种子播种后微囊化可以显著延缓毒死蜱和氟虫腈在花生根际土壤中的降解,在相同剂量下氟虫腈·毒死蜱18%种子处理微囊悬浮剂处理中在花生根际土壤和根系中氟虫腈和毒死蜱含量均显著高于非微囊化制剂。在药种比1∶100或1∶50条件下,用氟虫腈·毒死蜱种子处理微囊18%悬浮剂对花生种子包衣即可在整个花生生育期对蛴螬有效控制,防治效果在70%以上。
In this study, fipronil and chlorpyrifos 18% seed treatment microcapsule suspending agent as the control agent, the fipronil chlorpyrifos 18% seed treatment of the microcapsule suspension coating peanut seed fipronil and chlorpyrifos in the peanut rhizosphere soil And the dose dynamics in roots and pest control of peanut. The results showed that microencapsulation of coated seeds could significantly delay the degradation of chlorpyrifos and fipronil in the rhizosphere soil of peanut. Under the same dosage of fipronil and chlorpyrifos 18% seed treatment of SC suspending agent, The contents of fipronil and chlorpyrifos in soil and roots were significantly higher than those in non-microencapsulated soil. At the ratio of 1: 100 or 1:50, the treatment of 18% SC with microcapsules with fipronil and chlorpyrifos seeds could effectively control the stinkblet throughout the growth period of peanut. The control effect was 70% the above.