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中国农学通报

中国农学通报 ›› 2004, Vol. 20 ›› Issue (5): 234-234.

所属专题： 棉花

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20%高渗毒死蜱乳油防治棉花棉铃虫田间药效试验初报

米青荣   

  • 出版日期:2004-10-05 发布日期:2004-10-05

  • Online:2004-10-05 Published:2004-10-05

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摘要： 20%高渗毒死蜱乳油在二代棉铃虫发生盛期防治，每公顷施用有效成分270g时药后1、3和7d的矫正防效分别达83.99%、89.08%和89.73%，速效性和持久性均显著优于12%路路通乳油每公顷施用量1800ml效果（67.63%、74.61%、76.54%）。从保顶效果看，20%高渗毒死蜱乳油每公顷施用有效成分270g时为89.30%，显著优于对照12%路路通乳油1800ml每公顷施用效果80.70%。

Abstract: In the second generation of Heliothis armigera Hubner season, 20% chlorpyrifos EC that can easily seep into the body of the insects is of great effect. The experiment shows that the correcting effect of the prevention and control reaches respectively 83.99%, 89.08% and 89.73% when 18g effective composition of it is employed on 667 m2 field in 1 day, 3 days and 7 days, and compared with 120ml 12% lulutong EC employed on 667m2 field, its effect is more quick and lasting. In terms of protecting the top of the stem, when 18g effective composition of 20% chlorpyrifos EC is employed on 667 m2 field, the effect is 89.30, which is remarkably better than that of 120ml 12% lulutong EC employed on 667m2 field.