草 ｐｈａＩａｒｉｓｍｉｎｏｒＲｅｔｅ属禾本科草属。于１９９３年调运种子随种传入我县。生产中由于药剂不配套、防除技术落后等原因 ,该草逐步上升为我县麦田的主要草害。１．形态特征种子长圆锥形 ,长２ｍｍ左右 ,淡棕色。幼苗第一片叶长３～５ｃｍ ,宽０．５～０．８ Phalaenopsis phaIarisminorRete is a grass genus Rubescens. Seeding seeds in 1993 with my county. Due to the incompatibility of pesticides in production and the prevention and control of backward technology, the grass gradually rose to the main grassland in our county’s wheat fields. 1. Morphology Seeds long conical, about 2mm long, light brown. The first leaf of the seedlings is 3 ~ 5cm long and 0.5 ~ 0.8 wide