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目前,微胶囊农药在国外已成为一种重要的农药加工剂型。美国Pennwalt公司生产的甲基对硫磷微胶囊剂(Penncap-M),已经美国环保局批准投产,用来防治农、林、果树害虫。这种剂型与甲基对硫磷乳油相比,具有控制释放、延长残效期、降低毒性、使用安全和减少污染等优点,已为各国重视。 1979-1982年,我们应用微胶囊剂进行了防治松毛虫的试验研究工作。在试验研究中,我们首次应用甲基对硫磷微胶囊剂防治松毛虫,获得成功,大面积防治效果达96％以上。
At present, microcapsule pesticide has become an important pesticide processing agent in foreign countries. The Penncap-M, produced by the Pennwalt Company in the United States, has been approved and put into production by the United States Environmental Protection Agency to control pests in agriculture, forestry and fruit trees. This dosage form has the advantages of controlled release, prolonged residual period, lower toxicity, safe use and pollution reduction than methyl parathion, which has been valued by all countries. From 1979 to 1982, we applied the microcapsule to control the experimental study of pine caterpillars. In the experimental study, we first applied the methyl parathion microcapsule agent to control the pine caterpillars, and succeeded in achieving large-scale prevention and control effects of more than 96%.