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黄瓜黑星病新的防治技术黄瓜黑星病除澳大利亚、南美洲尚未见到报道外，已发生于欧洲、北美、东南亚等地。我国从８０年代开始，在东北三省。现在，又发展到内蒙古、山东、河北、山西、北京等省市，甚至海南也有了。为什么传播那么快呢？其主要原因：种子可以带菌。经笔者...
Cucumber scab New prevention and treatment technology Cucumber scab in addition to Australia, South America has not yet seen the report, has occurred in Europe, North America, Southeast Asia and other places. Since the 1980s, our country has been in the three northeastern provinces. Now it has also developed into Inner Mongolia, Shandong, Hebei, Shanxi and Beijing, and even Hainan. Why spread so fast? The main reason: seeds can carry bacteria. After the author ...