The results show that the control effects of silica sol, TEOS and silicate sodium to wheat powdery mildew are 1.02%, 51.36% and 54.08% individually.

• 结果表明；溶胶态的氧化硅溶胶、分子态的正硅酸乙酯和离子态的硅酸钠对小麦白粉病均有一定的作用效果；防治效果分别为1.；02%25、51