一、症状识别猝倒病俗称“小脚瘟”,是茄科蔬菜(番茄、茄子、甜椒、辣椒)苗期的主要病害。常见的症状有烂种、烂芽和猝倒三种。种子在萌发出土前受病菌侵染,可造成烂种、烂芽;苗期发病,幼苗茎基部呈水渍状病斑,接着病部变黄褐色,继而绕茎扩展,逐渐缢缩成为线条状。病情发展迅速,以致子叶还没有凋萎(仍保持绿色)时,幼苗便已夭折倒伏而死。苗床湿度大时,则在病苗及其附近床土上可见一层白色棉絮状的菌丝。 First, the symptoms identified Dumping disease commonly known as “small foot plague” is the main diseases of Solanaceae vegetables (tomato, eggplant, bell pepper, pepper) seedling stage. Common symptoms are rotten, rotten buds and catapults three. Seed germination in the germ before infection by bacteria, can cause rotten, rotten buds; seedling onset, seedling stem base was water stain-like lesions, followed by disease yellowish brown, then expand around the stem, gradually shrink into a linear . Rapid development of the disease, so that the cotyledons have not withered (still remain green), the seedlings have died of lodging and collapse. When the seedbed humidity is high, a layer of white cotton-like hyphae can be seen on the soil of the diseased seedling and its vicinity.