论文部分内容阅读
行唐县棉花研究所宇文璞等同志,在一无固定经费,二无专用试验示范田,三无工资补贴的困难条件下,几年来。坚持深入田间,深入实际,深入群众,终于摸索出几个高效低成本杀灭控制棉铃虫危害的有效方法。尽管他们的这些措施显得有些土气,但都是他们通过实践总结的宝贵经验,所以仍具有一定的参考价值。如有兴趣,不妨在田间一试。一、干土面加农药配毒土可治棉铃虫方法是用50公斤干胶泥土加0.5公斤甲胺磷和0.25公斤1605混均后喷施或撒施。这种方法是根据我们观察玉米叶上初孵棉铃虫,遇到尘埃加露水合成的泥浆后难于爬行,而被糊住致死现象总结出的一种土办法。据调查,采用这种方法的最佳施用期为初孵期,一般喷撒一次,有效期可持续10天。以亩用毒土5公斤计,仅需成本费20元。二、把诱杀棉铃虫的设施移到棉田外边去因为设置在棉田内的杨树枝把、性诱剂、点播的玉米撮、黑光灯、高压汞灯诱集物设在棉田内,反而会加大棉田落卵量,增加除治难度。
Yu Tang Pu County Cotton Institute and other comrades, in a fixed funding, two non-specific experimental demonstration field, three non-wage subsidies difficult conditions, the past few years. Adhere to an in-depth field, in-depth practical, in-depth, finally found out several effective and low cost to kill the effective method to control the harm of bollworm. Although these measures seem rustic, they are valuable experiences they have summed up through practice, so they still have some reference value. If you are interested, may wish to try in the field. First, the dry soil with pesticides can cure cotton bollworm method is to use 50 kg of dry clay plus 0.5 kg of methamidophos and 0.25 kg of 1605 mixed spray or spreading. This method is based on our observation of the first hatch cotton bollworm corn, met the dust and dewatered mud after difficult to crawl, and was killed by the phenomenon of death summarized as a local method. According to the survey, the best use of this method is the initial application of the incubation period, the general spray once, the validity of sustainable 10 days. In acres of poisonous soil 5 kilograms, only cost 20 yuan. Second, the trap to kill cotton bollworm facilities moved outside the cotton field to set aside in the cotton field of poplar branches, sex attractants, on-demand corn crop, black light, high pressure mercury lamp trap set in the cotton field, but will increase Oats fall in the amount of cotton, increase the difficulty in addition to governance.