用食用白醋1%、2％溶液和小苏打0．2％0、0．3％溶液啧施黄瓜叶片表面，通过调节叶面酸碱度，对黄瓜霜霉病的防控效果进行研究。结果表明：小苏打溶......

[Objective] The paper was to clarify the sensitivity and resistance of Pseudoperonospora cubensis to cymoxanil.[Method] ......