ＥＭ５号防治黄瓜霜霉病效果显著ＥＭ５号即高效微生物群体（ＥＭ）的一种，经沈阳农业大学１９９５年多点试验证明，对黄瓜杆霉病具有非常明显的防治效果。据东陵区大棚黄瓜调查表明，应用５００倍液喷施一次，病情增长率为２７．９％，防治效果为８０％；用１０００倍液... EM5 significant cucumber downy mildew effect is significant EM5 is a kind of efficient microbial population (EM), by the Shenyang Agricultural University in 1995 more points proved that there is a very significant control effect on cucumber cucumber mildew. According to the investigation of the greenhouse cucumber in Dongling District, the application of 500 times a spray, the disease growth rate of 27.9%, prevention and control of 80%; with 1000 times ...