玉米螟是玉米生产上的一大害虫,一般可减产5%～10%,不仅降低玉米产量,而且还影响玉米的质量,因此要在防治玉米螟上下功夫。一般都是夏季玉米螟发生时期进行防治,很少在冬春出蛰前防治,根据玉米螟的生活习性及其越冬规律,冬春出蛰前防 Corn borer is a major pest on corn production, which can reduce the yield by 5% ~ 10%. It not only reduces corn yield, but also affects the quality of corn. Therefore, it is necessary to make efforts to prevent and control corn borer. Generally in the summer when the occurrence of corn borer control, rarely in winter and spring before the onset of sting prevention, according to the life habits of corn borer and its overwintering law, winter and spring sting out before the defense