鸭梨褐皮病,也叫黑皮病,是一种生理病害。染病梨果最初表现为果面无光泽,颜色不正常,以后以果点为中心形成圆形病斑,再逐渐扩大连片,呈褐色以至变黑。该病在我省梨区早有发生,一般在鸭梨的贮藏后期发病,高峰期在翌年的三、四月份。进入八十年代以来,随着鸭梨贮存时间的延长,该病的危害愈来愈突出,特别是1992年,鸭梨 Brown pear brown skin disease, also known as black skin disease, is a physiological disease. Infected pear initially showed a matte, the color is not normal, after the center of the fruit to form a circular lesion, and then gradually expand the contiguous, brown and even black. The disease occurred in pear district in our province long before, usually in the late storage of pear disease, the peak in the following year in March and April. Since the eighties, with the extension of storage time of pear, the harm of the disease more and more prominent, especially in 1992, pear