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青龙县宋丈子大队在育蜂治虫的群众运动中,学习了吉林林科所应用平面接种法繁殖赤眼蜂的先进经验。但这种方法必须在电灯下操作,而我省广大深山区农村无电,所以此法虽好,却难推广。为了解决这个矛盾,贫下中农用毛主席的哲学思想,大搞科学试验,终于成功地创造了利用自然光代替电灯光进行平面接种的新方法。它具有操作简便,繁蜂速度快,寄生质量高的优点。起初,他们将繁蜂箱倒放,玻璃面朝上,使光线从上射入。结果放蜂入箱后,蜂只在玻璃上爬行,而且是前半部多,后半部少,因此放置在后部的卵粒寄生就少,效果不好。这是什么原因呢?毛主席说:“研究任何过程……就要用全力找出它的主要矛盾,捉住了这个主要矛盾,一切问题就迎刃而解了。”于是他们遵照这一教导去分析产生上述
Qinglong County Song Jizi brigade in the beekeeping pest movement in the mass, the Jilin Forestry Branch by plane vaccination method Trichogramma advanced experience. However, this method must operate under the electric light, and the vast majority of rural areas in our province have no electricity in rural areas. Therefore, although this method is good, it is difficult to promote. In order to solve this contradiction, Chairman Mao’s philosophy of poor peasants and poor peasants made major scientific experiments and finally succeeded in creating a new method of using plane light instead of electric light. It has the advantages of easy operation, fast bumble bee, high parasitic quality. At first they put the beehive upside down with the glass facing up, letting light in from the top. The results put into the box, the bees only crawl on the glass, and is more than the first half, the latter half less, so placed in the back of the parasitic eggs less, the effect is not good. What is the reason for this? Chairman Mao said: “To study any process ... we should try our best to find out its main contradiction and catch this major contradiction so that all problems will be solved.” So they followed this instruction to analyze and produce Above