日本看麦娘属于禾本科草本植物 ,适应性强 ,发生量大 ,繁殖快 ,是近年来我市麦田中新发现的一种恶性杂草 ,全市约有近 2 70公顷小麦遭受到不同程度的危害。直接影响了小麦的正常生长发育和产量的提高。据调查 ,一般麦田平均每平方米达 6 75株 ,严重的麦田可达 10 95株 ,部分麦 Japan to see Ma Niang belonging to grass herbaceous plants, adaptability, the occurrence of large, fast propagation, is a newly discovered malignant weeds in the city in recent years, the city about 2 70 hectares of wheat suffered varying degrees of harm. Directly affected the normal growth and development of wheat and yield. According to the survey, the average wheat field averaged 675 per square meter and the severe wheat field reached 1,095. Some wheat