冬季及早春进行茄果类蔬菜育苗时，由于外界气温较低，并且常出现连阴雨天气，致使大棚内经常出现结雾、低温、高湿现象，幼苗生长速度缓慢，从而导致苗期发生猝倒、立枯、沤根等症状。轻则降低幼苗成株率，重则造成幼苗大量死亡，延误农时。一、番茄、茄子、甜（辣）椒猝倒病? In winter and early spring when solanum vegetable nursery, due to the outside temperature is low, and often even the rainy weather, resulting in the greenhouse often appear fog, low temperature, high humidity phenomenon, the seedling growth rate is slow, leading to catapult cataplexy catapults, Withered, Zu root and other symptoms. Reducing the seedling plantlet rate from light, heavy cause seedlings died in large quantities, delay farming time. A tomato, eggplant, sweet (spicy) pepper damping off disease?