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第10届国际植保会议上各国学者普遍认为:目前的施药技术,有99%的农药因打不中生物靶标而浪费,并造成环境污染.因此,如何把农药准确地送到生物靶标上去,降低农药用量,减少农药对环境的污染,是农作物病虫害防治需要解决的突出问题.水稻二化螟是世界性害虫,水稻抽穗前,只发生在近水面的茎基部.数十年来的防治方法是用毒土法、泼浇法,将农药施于田水中,而田水药物含量不到1%.近年研究出大粒剂抛施法,但用药量较大.
It is generally accepted by scholars at the 10th International Plant Protection Conference that 99% of pesticides are wasted and can cause environmental pollution because of the current application technology, therefore, how to accurately deliver pesticides to biological targets, Reduce the amount of pesticides and reduce the pollution of pesticides on the environment, crop diseases and insect pests is the prevention and control of the outstanding issues to be addressed. Rice stem borer is a worldwide pest, rice heading only occurred near the surface of the stem base. Decades of prevention and treatment methods Poisonous soil method, pouring method, the pesticide applied to the field water, while the field water drug content of less than 1% .In recent years, research and development of large granules throwing method, but a larger dose.