白粉病是我区保护地和露地黄瓜栽培中的一种主要病害，以前多用托布津进行防治，因连续使用时间长，产生了抗药性，防治效果越来越差。1995－1996年用粉锈宁和小苏打防治黄瓜白粉病试验，效果很好。一、粉锈宁露地黄瓜，在新源糖厂某职工菜地进行，用15％粉锈宁500倍液，1000倍 Powdery mildew is one of the main diseases in cucumber cultivation in open areas and protected areas in our district. Previously, tobothin was used for prevention and treatment. Because of the long time of continuous use, powdery mildew developed resistance and the control effect was getting worse. 1995-1996 with triadimefon and baking soda cucumber powdery mildew test, the effect is very good. First, the rust rust Ning cucumber, a worker in the new source of sugar plant vegetables, with 15% triadimefon 500 times, 1000 times