棚室黄瓜霜霉病的综合防治技术一、选用抗病品种：如８７—７，中农５号，津杂３号、４号、新泰密刺、４—２等品种。二、生态防治：所谓生态防治就是创造一个有利于黄瓜生长不利于霜霉病发生和发展的环境条件，在不用农药的情况下，通过控制生态环境来达到减轻或控制病害... Cucumber greenhouse cucumber downy mildew comprehensive prevention and control technology First, the selection of disease-resistant varieties: such as 87-7, Zhongnong 5, Tianjin hybrid No. 3, No. 4, Xintiap spikes, 4-2 and other varieties. Second, the ecological control: the so-called ecological control is to create an environment conducive to the growth of cucumber is not conducive to the occurrence and development of downy mildew in the case of pesticides, by controlling the ecological environment to achieve to reduce or control the disease ...