The occurance of Melampsora rust on poplars in Shanghai was studied.The sprouting and infestation of uredinia and telia of the pathogen were tested.

• 摘要对杨叶锈病在上海的发生状况、病原菌冬孢子、夏孢子的形态及其越冬后的萌发和侵染能力进行研究。