一、原因与症状 1、苗床长期低温高湿而患的生理病害。植株发育不良,茎叶黄化,顶叶向上纵向卷缩,生长滞缓,严重者沤根枯死,根呈锈色,进而腐烂。 2、患病毒病。棚室辣(甜)椒病毒病,四季均有发生,病株顶叶皱缩,弯曲呈蕨叶状。 First, the causes and symptoms 1, seedbed long-term high temperature and humidity and suffering from physiological diseases. Plant dysplasia, yellowing of stems and leaves, the top of the leaf curled up vertically, growth stagnant, severe root blight dead, root rust, and then decay. 2, suffering from viral disease. Shed spicy (sweet) pepper virus disease, all seasons have occurred, the diseased parietal folds, curved fern leaf shape.