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1 .症状发病条件白绢病 ,真菌症 ,病菌体 ,土越科 ,条件适 ,茵萌动 ,先侵根 ,再侵茎。果染病 ,软腐性 ,生白绢 ,绢丝明。发病处 ,病斑呈 ,斑暗褐 ,水浸明。斑表面 ,茵丝生 ,似白绢 ,成来形。辐射状 ,缘不明。斑变褐 ,呈圆形。菜籽状 ,苗核生。近土茎 ,先发病。表皮烂 ,木质清。
1. Symptoms Disease conditions Sclerotinia, fungal disease, bacteria, soil and more subjects, conditions suitable, Yin sprouting, the first invasion of roots, then the invasion of stems. Fruit disease, soft rot, raw white silk, silk silk Ming. Incidence, lesions were spotted dark brown, water dip Ming. Spot surface, Yin silk students, like white silk, into the shape. Radial, edge unknown. Brown spots, rounded. Rape-shaped, seedlings nuclear. Near soil stems, the first disease. Skin is rotten, wood is clear.