To main natural enemies, the dispersal numbers of parasitoids from MH86 to MSB were slightly more than from MSB to MH86. and Braconidae , Ichenumonidae and Eurytomidae were the main dominant species despite of height of viscose plate.

• 而田间寄生性天敌扩散量在MH86一MSBMH86方向，且在不同高度皆主要为茧蜂、姬蜂、姬刁方向上略高于MSB~、蜂。