节节麦、雀麦、野燕麦、早熟禾等麦田恶性杂草均属禾本科有害生物。与小麦同属不同种,越年生或一年生,秆丛生,株高90cm,靠种子繁殖,外部形态无论苗期、成株期都与小麦极为相似,尤其是生长前期难以辨认。与小麦争光、争肥、争水,造成小麦生产不同程度的减产,甚至绝收。近几年来, Festival wheat, brome, wild oats, bluegrass and other wheat field weeds are gramineous pests. Different from the same species of wheat, perennial or annual, stalk tufts, plant height 90cm, relying on seed breeding, regardless of the external morphology of seedling and adult stage are very similar with wheat, especially in the early growth stage difficult to identify. Glory with wheat, fight fat, fight water, resulting in different levels of wheat production cuts, or even absolute. In recent years,