1980年在云南省剑川县东岭公社发生一种小麦根瘿线虫病,(Subanguina radicicola(Greeff)P-aramonov)发病面积约1983亩,据1981年普查;分布在剑川、合庆两县。 症状:发病麦株根部出现瘿瘤,瘿瘤呈肾形,近乎球形,瘤壁坚实,表面光滑,初为白色,随瘤体增大后转淡黄至褐色,有时可见到根尖螺旋形肿大成畸型瘤,在小麦生育后期, An area of ​​about 1983 mu of Subanguina radicicola (Greeff) P-aramonov occurred in the Dongling commune of Jianchuan County in Yunnan Province in 1980. According to the 1981 census, it was distributed in Jianchuan and Heqing counties . Symptoms: Occurred in the root of Malus tubercles, gall tumors were kidney-shaped, almost spherical, solid wall, the surface is smooth, the beginning of the white, with the tumor turn yellow to brown, and sometimes can see the root canal spiral swollen Dacheng deformity tumor, in the late stage of wheat growth,