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玉米是我国第一大粮食作物,也是重要的饲料作物,在发展我国的畜牧业和水产养殖业中具有战略性意义,在医药、化工方面也有广泛用途(仇焕广等,2013)。近十年来,随着农业种植结构的调整和耕作栽培方式的转变,玉米品种选育加快,种植面积迅速增加,玉米病虫害发生一直呈加重趋势,一些次要害虫在全国范围或局部地区为害不断加重,甚至上升为主要害虫,加之一些新发生的病害,对玉米安全生产构成了威胁(石洁等,2005;秦子惠等,2014;赵立萍等,2015)。
Corn is the largest food crop in China and also an important forage crop. It is of strategic importance in the development of animal husbandry and aquaculture in China and also widely used in medicine and chemical industry (Qiu et al., 2013). In recent ten years, along with the adjustment of agricultural planting structure and the change of tillage and cultivation methods, the breeding of maize varieties has been accelerated and the planting area has been increased rapidly. The incidence of maize pests and diseases has been on the increase. Some minor pests have been aggravated in the whole country or in some areas , Even rising to major pests, together with some newly occurring diseases, pose a threat to the safety of maize (Shi Jie et al., 2005; Qin et al., 2014; Zhao Liping et al., 2015).