小地老虎(当地农民呼黑头虫),是银川市重要害虫之一。为害蔬菜、粮食、经济作物,尤以为害蔬菜最重。被害作物一般缺苗率达15～20％,严重的达40％以上,造成大量缺苗断垄,每年浪费很多补苗劳力,影响蔬菜生 Small tiger (black pest call local farmers), Yinchuan is one of the major pests. Harm vegetables, food, cash crops, especially the most harmful vegetables. Crops generally lack seedling rate of 15 to 20%, a serious 40% or more, resulting in a large number of lack of seedlings off the ridge, a lot of waste each year filling labor, affecting students