桃菌核病是上海郊区和江南一带桃园发生较多的一种真菌性病害,由于本病也能造成幼果的迅速变褐腐烂,因此也常被统称为“褐腐病”。本病在某些年份也能造成重大损失。据在上海郊区观察,本病与油菜菌核病为同一病原。除桃外,梨也有发生。但梨树上以花腐及叶腐为主,梨果发病较轻。为害症状:本病能为害桃树的花、新叶、嫩梢及幼果。初期的症状与桃褐腐病极为相似,花期受 Peach sclerotinia is a fungal disease that occurs more frequently in the suburbs of Shanghai and Taoyuan in the southern part of the Yangtze River. It is also commonly referred to as “brown rot” because the disease can also cause rapid browning and decay of young fruit. The disease in some years can also cause significant losses. According to the observation in the suburbs of Shanghai, the disease and sclerotinia are the same pathogen. In addition to peaches, pear also occurred. However, pear-based flowers and leaf rot, pear lighter incidence. Damage symptoms: The disease can damage peach flowers, new leaves, shoots and young fruit. Early symptoms are very similar to peach brown rot, flowering by