毁灭稻根杀死过多螟虫,在目前来讲,仍为抑制三化螟灾的基本办法。为了收到更大的效果,我们在处理稻根的方法方面,作了一些试验,现将结果分别介绍于下:一、处理方法和获得效果的介绍:1.灰塘处理:52年12月中旬在田角开一深 Destroying the root of rice to kill too many stem borer, for now, is still the basic way to suppress the three borer disaster. In order to receive more effect, we have done some experiments on the method of treating rice roots, the results are introduced below: First, the treatment methods and access to the effect of introduction: 1. Ash ponds processing: December 52 In the midday open a deep corner