黑背小绿螽的成虫、若虫均咬食三化螟卵块;并捕食白螟、斜纹夜蛾的卵;叶蝉、稻虱、稻蝗的低龄若虫。在南宁、贵县等地一年发生两代,以卵越冬,卵散产于茭白、姜苗、禾本科杂草等的叶鞘内侧及稻兜株间。用人工配制的代饲料饲养,所得的成虫能继代繁殖。在稻田及时补充散放一定数量的适龄虫体,对控制三化螟害虫有一定的作用。 The adults and nymphs of Bombyx mandarina bite the eggs of the stem borer, and prey on the eggs of white borers and Spodoptera litura; the young nymphs of the leafhoppers, the rice louse and the rice locusts. In Nanning, Gui County and other places occur two generations a year, the overwintering of eggs, eggs scattered in the wild white, ginger seedlings, grass weeds and other leaf sheath inside and between the rice pocket. Artificial preparation of feed for feeding, the resulting adult can reproduce. Timely replenishment of paddy in a certain number of appropriate age of parasites on the control of Stem borer pests have a role.