通过对2005-2010年原州区苜蓿病虫害的监测,苜蓿害虫主要有蚜虫、蓟马、草地螟、盲蝽、象甲,苜蓿病害主要有褐斑病、锈病、白粉病、根腐病。苜蓿害虫的种群数量和病害的病情指数逐年增加的趋势明显,病虫害对苜蓿的危害程度也在逐年加重,应加强对苜蓿病虫害预测预报工作的开展,重视苜蓿病虫害综合防治措施的实施。 Through the monitoring of the alfalfa pests and diseases in Yuanzhou District from 2005 to 2010, the main diseases of alfalfa pests include aphids, thrips, meadow moths, larvae, weevils and alfalfa, which are brown spot, rust, powdery mildew and root rot. The population of alfalfa pests and disease index gradually increased year by year. Pest damage to alfalfa is increasing year by year. Therefore, the prediction and forecast of alfalfa pests and diseases should be strengthened and the implementation of integrated pest control measures should be emphasized.