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目前,植保的方法主要采用化学、物理、生物和综合防治等,由于化学防治方法具有工效高、防治及时等特点,特别是针对突发性、大面积泡发病虫害时,能确保及时控制和防治。因此,它是国内外农业生产中采用时间较长的病虫害防治手段。1我国植保情况简介一些相关数据表明,植保机械每年可为我国农业生产减少粮食损失175亿kg,减少皮棉损失1000万担;由于我国植保器械和植保技术还比较落后,农药的有效利用率仅为20%～40%,大部分的农药流失到土壤和环境中,不仅浪费极
At present, the methods of plant protection are mainly chemical, physical, biological and comprehensive prevention and control. Due to the characteristics of high chemical efficiency, prevention and cure, etc., the methods of chemical control can ensure timely control and prevention when sudden and large-scale blister pests and diseases occur . Therefore, it is a long-time pest control measure used in agricultural production at home and abroad. 1 Introduction to Plant Protection in China Some relevant data show that plant protection machinery can reduce food loss by 17.5 billion kg and reduce lint loss by 10 million tons per year for agricultural production in our country. Due to the backward technology of plant protection equipment and plant protection in China, the effective utilization rate of pesticides is only 20% ~ 40%, most of the pesticides lost to the soil and the environment, not only a waste of very