１９９２年７～９月对加拿大Ｌｅｔｈｂｒｉｄｇｅ农业研究站田间所产鹰咀黄芪种子进行了检验，结果表明该地所产种子带有Ａｌｌｅｒｎａｒｉａ、Ｃｌａｄｏｓｐｏｒｉｕｍ、Ｅｐｉｃｏｃｃｕｍ、Ｆｕｓａｒｉｕｍ、Ｐｈｏｍａ、Ｓｔｅｍｍｐｈｙｌｉ－ｕｍ、Ｕｌｏｃｌａｄｉｕｍ等属以及一个尚待鉴定中的病原菌。种子带菌率随田间取样时间的后移而逐渐增高。接种试验证明了Ａｌｔｅｒｎａｒｉａ、Ｅｐｉｃｏｃｃｕｍ、、Ｐｈｏｍａ、Ｕｌｏｃｌａｄｉｕｍ和１待鉴定种半知菌等五种病原真菌对鹰咀黄芪种子均有一定程度的致病力。 From July to September 1992, the test of Astragalus mongholicus from the field at Lethbridge Agricultural Research Station in Canada showed that the seeds produced in this field belonged to Allernaria, Cladosporium, Epicoccum, Fusarium, Phoma, Stemmphyli-um, Ulocladium, A pathogen yet to be identified. Seed carrying rate gradually increased with the time of field sampling. Inoculation experiments showed that five pathogenic fungi Alternaria, Epicoccum, Phoma, Ulocladium and a semi-unknown fungus to be identified have a certain degree of pathogenicity on the Radix Astragalus.