本文报道了小卷蛾线虫（ＳｔｅｉｎｅｒｎｅｍａｃａｒｐｏｃａｐｓａｅＡｇｒｉｏｔｏｓＦｉｌｉｔｊｅｖ）对玉米螟田间控制作用。结果表明，制备线虫糊剂和水剂，以每株２０００条线虫的剂量，在玉米的心叶末期和抽雄初期施用，对玉米螟的发生与危害具有较好的控制效果。当线虫施用后，线虫主要在穗上部扩散，随着时间的延长，线虫种群数量逐渐下降，但是，在第１６天仍能回收到一定数量的线虫，说明线虫的控制时间可长达１６ｄ。 This article reports the field control effect of SteinernemacarpocapsaeAgriotos Filitjev on the corn borer. The results showed that the preparation of nematode paste and water agent with a dosage of 2000 nematodes per plant at the end of leaf and early tassel stage of maize had good control effects on the occurrence and damage of corn borer. When nematodes were applied, the nematodes spread mainly in the upper part of the panicles. With the extension of time, the number of nematode populations gradually decreased. However, a certain amount of nematodes were recovered on the 16th day, indicating that the control time of nematodes can be as long as 16 days.