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心叶期防治玉米螟一般多采用六六六液剂灌心叶的方法,这一方法还存在着一些缺点,例如费工、需水、残效期不长等。一两年来部分地区开始试用毒土防治,结果良好。据中国农业科学院植保所的初步研究,防治玉米螟以颗粒剂效果为最好,但目前尚未大量生产,一时还不能大面积推广。毒土具备了一些颗粒剂的特点,且配制简单,农村都能自制,适合于目前推广,值得进一步研究。
In the leaf-stage prevention and control of corn borer, the method of filling the heart with more than 666 liquid medicine is generally used. There are still some shortcomings in this method, such as labor-consuming, water-taking and short-term residual period. In a year or two, poisonous soil control began in some areas and the result was good. According to the preliminary study of Plant Protection Institute of Chinese Academy of Agricultural Sciences, the prevention and treatment of corn borer to granules as the best, but not yet large-scale production, and can not be a large area promotion. Toxic soil has the characteristics of some granules, and the preparation is simple, rural areas can be self-made, suitable for the current promotion, it is worth further study.