在美国,因具节山羊草的危害每年可引起小麦减产25%或更多,而目前能杀死具节山羊草的有效除草剂也会杀死小麦。具节山羊草与冬小麦一样,秋季发芽,冬季停止生长,次年春天重新开始生长,夏初成熟。收获时混入小麦的具节山羊草种子会降低面粉的烘烤品质,从而影响面粉的出口。 In the United States, the annual yield of 25% or more of the wheat is reduced due to the hazards of knotweed, and effective herbicides that kill the knot of goat grass kill the wheat. With sections of goat grass and winter wheat, germination in autumn, winter to stop growing, the spring of the next year to resume growth early summer ripe. The sectioned goatgrass seeds mixed into wheat at harvest reduce the baking quality of the flour and thus affect the flour exports.