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目前广大棉区防治棉花蕾铃期害虫,一般均采用喷雾器喷药的防治方法,工效较慢。尤其是在集中产棉区,棉田面积大,往往是第一次喷药尚未结束,而已喷过药的地块又遭受虫害,需要进行第二次喷药,形成了循迴喷药,喷雾花工多,成本高,防治不及时,效果也不显著;而且用混合巨毒农药喷雾,对人畜很不安全。因此,如何做到用药有效、经济、安全,是广大棉区,特别是劳少地多地区急待解决的问题。1964、1965两年,我们作了喷药方式的试验、示范,现将初步结果简报于后。
At present, the majority of cotton area cotton boll boll stage control pests, spraying methods are generally used sprayer control, slow efficiency. Especially in the concentrated cotton producing area, the cotton field area is large, the first spraying is not finished yet, and the plots that have been sprayed by the medicine are also subjected to pests and need to be sprayed for a second time to form a recycling spray and spray flower Many workers, high cost, prevention and treatment is not timely, the effect is not significant; but also mixed with poisonous pesticide spray, it is not safe for humans and animals. Therefore, how to achieve effective, economical and safe drug use is an urgent issue to be solved in the vast cotton area, especially in the labor-less areas. In 19641965 two years, we made a test of the way of spraying, demonstration, the initial results are now reported later.