近几年,北京市郊区苹果上发生了一种烂果病,在有些果园(如芦沟桥公社果园大队、团河农场、巨山农场等)烂果损失达50—60％,成为主要的果实病害。受害品种以“金冠”为主,“小国光”与“大国光”也较严重。 烂果病的典型病果呈轮纹症状,有人认为是苹果轮纹病菌(Macrophoma Kawatsukai Hara)侵染所致。但值得推敲之处颇多,如病园中苹果轮纹病的 In recent years, a rotten fruit disease has occurred on apple trees in the suburbs of Beijing. In some orchards (eg, Lugouqiao commune orchard brigade, Tuanhe farm, Jushan farm, etc.) rotten fruit losses have reached 50-60%, becoming the major Fruit disease. The victims of the “Golden Delicious” mainly “small country light” and “big country light” is also more serious. The typical culprit of rotten fruit is whetted, some thought to be caused by Macrophoma Kawatsukai Hara. But worth considering a lot of places, such as Park disease Apple Ridge disease