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分别以20%腈菌·福美可湿性粉剂2 100 g/hm~2、1 800 g/hm~2、1 500 g/hm~2及12.5%腈菌唑乳油240 g/hm~2、50%福美双可湿性粉剂900 g/hm~2 5个处理进行黄瓜白粉病防治效果试验。结果表明,在黄瓜白粉病初期,20%腈菌·福美可湿性粉剂1 500~2 100 g/hm~2喷雾处理,具有较好的防治效果,持效期可达10天左右,且对黄瓜安全。腈菌唑与福美双两者混用能延缓抗性产生,降低腈菌唑的用量,提高对黄瓜的安全性。
Respectively with 20% nitrile bacteria · Familia WP 2 100 g / hm ~ 2,1 800 g / hm ~ 2,1 500 g / hm ~ 2 and 12.5% myclobutanil 240 g / hm ~ 2,50% Fumei double wettable powder 900 g / hm ~ 25 treatment cucumber powdery mildew prevention and control test. The results showed that in the early stage of cucumber powdery mildew, 20% nitrobacterium · Familia wettable powder 1 500 ~ 2 100 g / hm ~ 2 spray treatment, has good control effect, persistence of up to 10 days, and cucumber Safety. Myclobutanil and the combination of the two can delay the production of resistance, reduce the amount of myclobutanil and improve the safety of cucumber.