粟锈病在世界各国粟产区均有发生,常引起病害流行,造成产量较大损失。金狗尾草、青狗尾草和野稗草是粟田内极普遍的杂草,它们是否起传播锈菌作用有待于研究。本文旨在确定这些杂草是否为粟锈菌的寄主,以及粟锈菌与狗尾草锈菌交互接种关系。 Mildew rust millet areas in the world have occurred, often causing disease epidemic, resulting in greater loss of production. Golden foxtail, green foxtail and wild barnyardgrass are the most common weeds in the field, and whether or not they play a role in spreading rust remains to be studied. The purpose of this paper is to determine if these weeds are host to P. rust fungi and the interaction between P. rust fungi and S. viridis.