摘要
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。
This study was conducted to assay the dose dynamic of fipronil and Chlorpyrifos in rhizosphere soil and roots of peanut following seed treatment by fipronil. Chlorpyrifos 18% CF compared to fipronil.Chlorpyrifos 18% FS treatment, and their bioefficacy against Peanut grub- was also assayed as well. The results indicated that microencapsulation could significantly retard the degradation of fipronil and Chlorpyrifos in rhizosphere soil. Under the same doses, the fipronil and Chlorpyrifos contents of fipronil-Chlorpyrifos 18% CF treatments in rhizosphere soil and roots were dramatically higher than that of unmicroencapsulation formulation treatments. At rate of 1：100-50 （weight of formulation：weight of seeds）, fipronil.Chlorpyrifos 18% CF used as seed treatment on peanut could efficiently control against Peanut Grub during the growth period of peanut, and the control rate was above 70%.
出处
《农药科学与管理》
CAS
2014年第2期60-63,共4页
Pesticide Science and Administration
基金
国家公益性行业(农业)科研专项"农田地下害虫综合防控技术研究与示范"(201003025)
