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3911“药灰”是用3911农药或加入赛力散等,与柴灰、炕灰或炉渣灰(作载体)拌匀以后,搓拌在泡涨的棉籽上,然后播种。用这种方法拌棉种,可以有效地控制棉花蚜虫。它与各地原来用3911药剂浸种、闷种、喷拌或泼拌等方法比较,有几个优点:1、药剂流失量少;2、使用安全:3,操作简单,不需任何容器;4、可以堆放,也能随拌随种。自1966年以来,在渭南、三原等地多年大面积使用,效果很好。用药量同样是0.5％的,较其他拌种方法延长药效一周左右,残效可到六月上旬。
3911 “Gray medicine” is mixed with 3911 pesticide or saxa powder and mixed with wood ash, kang ash or slag ash (as carrier), then rubbed and mixed in the soaked cottonseed and sowed. With this method of cotton seed, cotton aphids can be effectively controlled. It has with the original around the 3911 drug soaking, bored, spray mixing or spill mixing methods, there are several advantages: 1, less drug loss; 2, the use of safety: 3, simple operation, without any container; 4, Can be stacked, but also with the mix with the species. Since 1966, Weinan, Mihara and other places for many years large-scale use, the effect is very good. The same dose of 0.5%, compared with other seed dressing method to extend the efficacy of about a week, the residual effect can be early June.