桃褐腐病又称菌核病、果腐病,是一种重要的桃树病害。该病在全国桃产区尤其在南方桃园发生较重,特别在果实生长后期,如遇多雨多雾潮湿天气,往往会流行发病,引起大量烂果、落果、并在贮运期间继续传染发病,常给果农造成较大的经济损失。褐腐病可为害桃树的果、花、叶和枝梢,果实受害尤为严重。该病是由一种名为链核盘菌的真菌侵入引起的,病菌在僵果、病枝的溃疡部越冬,翌年春季产生大量的分生孢子,借助于风、雨、昆虫传播,从气孔、皮孔、伤口侵入,引起初次侵染,在适宜的条件下,可引起再次侵染。 Peach brown rot, also known as sclerotinia, fruit rot, is an important peach disease. In the peach area especially in the south of Taoyuan, the occurrence of this disease is heavier, especially in the later period of fruit growth. In case of rainy and foggy wet weather, the epidemic tends to be epidemic, causing a great deal of rotten fruit and deciduous fruit. The disease continues to be infected during storage and transportation, Often to the farmers to cause greater economic losses. Brown rot can damage peach fruit, flowers, leaves and shoots, the fruit is particularly bad. The disease is caused by the invade of a fungus called Streptomyces helminthiasis, which colonizes the ulcer of the stiff fruit and diseased branches and produces a large number of conidia in the following spring, with the aid of wind, rain and insect transmission, , Lenticels, wound intrusion, causing the initial infection, under the right conditions, can cause further infection.