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十字花科蔬菜病毒病为害大白菜、菜苔、油菜、甘蓝、萝卜、榨菜、芥菜、韭菜等所有冬种蔬菜。重病株叶片皱缩成团,叶硬而脆,上有许多褐色斑点,叶背叶脉上亦有褐色坏死条斑,并出现裂痕,病株严重矮化,畸形。受害较轻的,病株畸形,矮化较轻,有时只呈现半边皱缩,矮化。受害最轻的,病株不显畸形和矮化,只有轻微花叶和皱缩症状。土温高,土壤湿度低的,病毒病发生较重。秋播种期早,发病重,播种晚的发病轻。
Cruciferae vegetable virus disease cabbage, moss, rape, cabbage, radish, mustard, mustard, leek and all winter vegetables. Severe strains of leaves shrink into a group, leaves hard and brittle, there are many brown spots, leaf veins also have brown necrosis streaks, and cracks, severe dwarf disease, deformity. Victims of lighter, diseased deformity, dwarfing lighter, and sometimes only showed half of the shrinkage, dwarfing. Victims of the lightest, diseased strains were not deformed and dwarfed, only slight mosaic and shrinkage symptoms. High soil temperature, low soil moisture, severe viral disease. Early autumn sowing period, the incidence of severe, light late sowing.