番茄脐腐病是番茄上的一种主要病害,尤以夏季为重。脐腐病病斑发生于幼果脐部,脐部初呈水渍状,暗绿色,随后很快变成暗褐色或黑色,其下部果肉组织崩溃收缩,脐部扁平,健组织部分提早变红。如果病部遭到腐烂性细菌的侵染,则会出现软腐症状。脐腐病是一种生理性病害,发病的主要原因是水分供应失调,其次是植株不能从土壤中吸取足够的钙 Tomato umbilicus is a major tomato disease, especially in summer. Umbilicus lesion occurred in the young umbilical cord, umbilical first water-like, dark green, and then quickly turned dark brown or black, the collapse of the collapse of the lower part of the flesh tissue, umbilical flat, early red part of healthy tissue . If the disease has been infected with rotten bacteria, there will be soft rot symptoms. Umbilical rot disease is a physiological disease, the main reason is the incidence of water supply disorders, followed by plants can not draw enough calcium from the soil