山东滨州市的刘家玉读者来电话询问:秋天花菜为什么结球时上面有霉点,还腐烂?根据刘家玉读者所描述的症状,有可能是花菜黑斑病。花菜的叶、茎、花梗均可染病。花菜染病时,叶片上大量生小的具有淡褐色 Liu Bin Yu, Binzhou City, Shandong readers to call the phone: Why does the fall of cauliflower above the moldy, but also rot? According to Liu Jiayu readers described the symptoms, there may be cauliflower black spot disease. Cauliflower leaves, stems, pedicel can be infected. When cauliflower is infected, a large number of small, young leaves have a light brown color