为防治以甜菜象为主的甜菜苗期害虫,内蒙地区从六十年代开始用3911拌或浸甜菜种籽,取得良好的防虫效果。但由于多年来长期单一使用,害虫对3911的抗药性逐渐增强,虽然不断提高用药浓度,但防治效果仍在继续下降,急需以其它的农药品种来代换,而甲基硫环磷是目前可以应用的一种。 To control sugar beet seedling pests mainly in sugar beet, Inner Mongolia region started to mix or dip beet seeds with 3911 from the 1960s to obtain good pest control effects. However, due to long-term single use, pest insecticide resistance to 3911 gradually increased, although the continuous increase in drug concentration, but the control effect is still continuing to decline, the urgent need to replace other pesticide varieties, and methyl sulfide sulfur phosphorus is currently possible A kind of application.