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1.症状识别立枯病是引起茄科蔬菜(番茄、茄子、甜椒、辣椒)苗期死菌的主要病害之一。小苗和大苗均能发病,但一般多发生于育苗的中后期。病苗茎基部产生椭圆形暗褐色病斑,早期病苗白天萎蔫,夜间恢复,病斑逐渐凹陷,并扩大绕茎一圈,有的木质部被暴露在外,最后病部收枯,植株死亡。发病部位常发生不甚明显的淡褐色蜘蛛网状霉。
1. Symptom Identification Blight is one of the major diseases that cause dead bacteria at the seedling stage of Solanaceae vegetables (tomatoes, eggplants, bell peppers, peppers). Small seedlings and seedlings can attack, but generally occur in the mid-late nursery. Stems at the base of the seedlings produce oval dark brown lesions. The early seedlings wilted during the day, restored at night, the lesions gradually degenerated and expanded around the stem, and some xylem were exposed. Finally, the diseased plants died and the plants died. Occurred in the incidence of less obvious light brown spider mite mildew.