Two peatcides with the efficiency control effect were selected from five pesticides in the experiment of controlling downy mildew, and their control effect were 87.44%-85.77% and 86.01%-83.37% respectively, which can be used in cabbage production.

• 选用5种农药作防效试验，姑选出2种防治甘蓝霜霉病效果较好的药剂，防治效果分别达87.；44%25~85