近来,笔者经过对蔬菜病样检测,并在蔬菜基地实地调查,发现当前新的病害正在流行,还有的病害受气候影响,发生比以往更为普遍,而突出的问题是这些病害易与常发病害混淆,人们往往盲目地根 Recently, after examining the samples of vegetables and conducting field surveys in vegetable bases, the author found out that the current new diseases are becoming prevalent and that some diseases are affected by the weather and occur more frequently than before. The outstanding problems are that these diseases are easy and often The incidence of confusion, people are often blind roots